| 1 | subroutine compute_entropy(s)
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| 2 | ! computes entropy at istep and pushes the stack down for previous
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| 3 | ! steps needed to compute ds/dt via finite difference (for now).
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| 4 | ! hardcoded for Burgers equation. More later when folded into CMT-nek
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| 5 | ! for Burgers, s=energy=1/2 U^2
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| 6 | include 'SIZE'
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| 7 | include 'TOTAL' ! tlag is lurking. be careful
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| 8 | include 'CMTDATA'
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| 9 | ! I've always seen lorder=3, but I still need three steps
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| 10 | ! s(:, 1, 1) ! entropy at current step
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| 11 | ! s(:, 2, 1) ! entropy at step n-1
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| 12 | ! s(:, 1, 2) ! entropy at step n-2
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| 13 | real s(lx1*ly1*lz1*lelt,lorder-1,*)
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| 14 | real ntol
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| 15 | integer e
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| 16 | data icalld /0/
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| 17 | save icalld
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| 18 |
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| 19 | n=lx1*ly1*lz1
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| 20 | ntot=n*nelt
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| 21 | ntol=1.0e-10
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| 22 |
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| 23 | if (icalld .eq. 0) then
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| 24 | if (nio .eq. 0) write(6,*) 'zeroing out entropy stack',istep
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| 25 | icalld=1
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| 26 | call rzero(s,ntot)
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| 27 | call rzero(s(1,1,2),ntot) ! s_{n-1}
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| 28 | call rzero(s(1,2,1),ntot) ! s_n
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| 29 | endif
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| 30 |
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| 31 | ! compute the current entropy. This actually needs to go back in the
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| 32 | ! usr file because it's EOS-dependent
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| 33 | rgam=rgasref/(gmaref-1.0)
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| 34 | do i=1,ntot
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| 35 | rho=max(vtrans(i,1,1,1,irho),ntol)
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| 36 | s(i,1,1)=rgam*rho*log(pr(i,1,1,1)/(rho**gmaref))
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| 37 | enddo
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| 38 |
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| 39 | if (stage .eq. 1) then
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| 40 | ! push the stack
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| 41 | call copy(s(1,1,2),s(1,2,1),ntot) ! s_{n-1}=s_n
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| 42 | call copy(s(1,2,1),s(1,1,1),ntot) ! fill s_n
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| 43 | endif
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| 44 |
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| 45 | return
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| 46 | end
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| 47 |
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| 48 | !-----------------------------------------------------------------------
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| 49 |
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| 50 | subroutine entropy_viscosity
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| 51 | include 'SIZE'
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| 52 | include 'TOTAL'
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| 53 | include 'CMTDATA'
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| 54 | parameter (lxyz=lx1*ly1*lz1)
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| 55 | common /scrns/ scrent(lxyz,lelt)
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| 56 | integer e
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| 57 | character*132 deathmessage
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| 58 |
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| 59 | pi=4.0*atan(1.0)
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| 60 |
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| 61 | n=lx1*ly1*lz1
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| 62 | ntot=n*nelt
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| 63 |
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| 64 | ! entropy at this and lorder prior steps
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| 65 | call compute_entropy(tlag)
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| 66 | ! compute maxval(|S-<S>|)
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| 67 | savg = glsc2(tlag,bm1,ntot)
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| 68 | savg = -savg/volvm1
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| 69 | call cadd2(scrent,tlag,savg,ntot)
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| 70 | maxdiff = glamax(scrent,ntot)
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| 71 | if (maxdiff.le.0.0) then
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| 72 | write(6,*) 'zero maxdiff usually means NAN$'
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| 73 | ! write(deathmessage,*) 'zero maxdiff usually means NAN$'
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| 74 | ! call exittr(deathmessage,maxdiff,istep)
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| 75 | endif
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| 76 | call entropy_residual(tlag) ! fill res2
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| 77 | call copy(res2(1,1,1,1,2),res2,ntot) ! raw residual in res2
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| 78 | call wavevisc(t(1,1,1,1,3))
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| 79 | call resvisc(res2) ! overwrite res2
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| 80 | call evmsmooth(res2,t(1,1,1,1,3),.true.) ! endpoints=.false.
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| 81 | ! is intended to
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| 82 | ! preserve face states,
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| 83 | ! but this is easier to
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| 84 | ! test 1D
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| 85 | ! call evmsmooth(res2,t(1,1,1,1,3),.true.) ! And again.
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| 86 | call dsavg(res2) ! you DEFINITELY don't want a min here
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| 87 |
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| 88 |
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| 89 | return
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| 90 | end
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| 91 |
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| 92 | !-----------------------------------------------------------------------
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| 93 |
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| 94 | subroutine piecewiseAV(shock_detector)
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| 95 | include 'SIZE'
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| 96 | include 'TOTAL'
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| 97 | include 'CMTDATA'
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| 98 | integer e
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| 99 | character*132 deathmessage
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| 100 | common /scrvh/ avmask(lelt)
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| 101 | real avmask
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| 102 | external shock_detector
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| 103 |
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| 104 | pi=4.0*atan(1.0)
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| 105 |
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| 106 | nxyz=lx1*ly1*lz1
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| 107 | ntot=nxyz*nelt
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| 108 |
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| 109 | ! toggle shock detector with AV application Lv, See & Ihme (2016) JCP 322
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| 110 |
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| 111 | if (time4av) then
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| 112 | call shock_detector(avmask)
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| 113 |
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| 114 | ! old nu_max
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| 115 | call wavevisc(t(1,1,1,1,3))
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| 116 | ! diagnostic
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| 117 | ! if (stage.gt.0)then
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| 118 | ! do e=1,nelt
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| 119 | !! do i=1,nxyz
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| 120 | ! write(stage*100+nid,*)xm1(i,1,1,e),ym1(i,1,1,e),t(i,1,1,e,3)
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| 121 | ! enddo
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| 122 | ! enddo
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| 123 | ! endif
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| 124 | do e=1,nelt
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| 125 | call cmult(t(1,1,1,e,3),avmask(e),nxyz)
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| 126 | if (avmask(e).ne.1.0) write(6,*) 'duh sir'
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| 127 | enddo
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| 128 |
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| 129 | else
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| 130 | call rzero(t(1,1,1,1,3),ntot)
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| 131 | ! call shock_detector(avmask)
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| 132 | endif
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| 133 |
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| 134 | ! diagnostic
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| 135 | ! if (stage.gt.0)then
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| 136 | ! do e=1,nelt
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| 137 | ! do i=1,nxyz
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| 138 | ! write(stage*1000+nid,'(5e15.7)') xm1(i,1,1,e),ym1(i,1,1,e),
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| 139 | !! > t(i,1,1,e,3),avmask(e),epsebdg(e)
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| 140 | ! enddo
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| 141 | ! enddo
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| 142 | ! endif
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| 143 |
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| 144 | ! call max_to_trilin(t(1,1,1,1,3))
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| 145 |
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| 146 | return
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| 147 | end
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| 148 |
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| 149 | c-----------------------------------------------------------------------
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| 150 |
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| 151 | subroutine entropy_residual(s)
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| 152 | ! COMPUTE R=ds/dt + div F(s) for entropy pair s and (hardcoded) F
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| 153 | ! and store its norm functional thing |R| in res2 where it will
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| 154 | ! provide artificial viscosity according to the code in
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| 155 | ! entropy_viscosity and the method of Guermond
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| 156 | include 'SIZE'
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| 157 | include 'TOTAL' ! tlag lurks
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| 158 | include 'CMTDATA'
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| 159 | integer e
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| 160 | real dsdtcoef(3) ! put this in /TIMESTEPCOEF/ someday
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| 161 | data dsdtcoef /1.0,1.0,0.5/
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| 162 | real s(lx1*ly1*lz1*lelt,lorder-1,ldimt) ! because it's really tlag
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| 163 |
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| 164 | n=lx1*ly1*lz1
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| 165 | ntot=n*nelt
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| 166 |
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| 167 | if (istep .eq. 1) return
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| 168 | rdt=1.0/(dsdtcoef(stage)*dt)
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| 169 | if (stage .eq. 1) then ! THE MOST SABOTAGEABLE PART OF THE CODE
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| 170 | call sub3(res2,s(1,1,1),s(1,1,2),ntot) ! EVALUATE s_n-s_{n-1}
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| 171 | else
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| 172 | call sub3(res2,s(1,1,1),s(1,2,1),ntot) ! EVALUATE s^{(stage)}-s_n
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| 173 | endif
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| 174 | call cmult(res2,rdt,ntot)
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| 175 | ! res2=ds/dt. now,
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| 176 |
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| 177 | !-----------------------------------------------------------------------
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| 178 | ! cons approach: strong-conservation form of flux divergence in entropy residual
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| 179 | !-----------------------------------------------------------------------
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| 180 | ! get around to expanding totalh to store fluxes for whole fields and
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| 181 | ! properly vectorize evaluate_*_h and flux_div_integral
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| 182 | do e=1,nelt
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| 183 | call evaluate_entropy_flux(e) ! diffh. zero it before diffusion
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| 184 | call flux_div_mini(e) ! into res2 it goes.
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| 185 | enddo
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| 186 |
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| 187 | return
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| 188 | end
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| 189 |
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| 190 | c-----------------------------------------------------------------------
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| 191 |
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| 192 | subroutine evaluate_entropy_flux(e)
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| 193 | ! entropy flux function for entropy residual.
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| 194 | ! just vel*s for now
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| 195 | include 'SIZE'
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| 196 | include 'SOLN'
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| 197 | include 'INPUT'
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| 198 | include 'CMTDATA'
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| 199 | integer e
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| 200 |
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| 201 | call rzero(totalh,3*lxd*lyd*lzd)
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| 202 | n=lx1*ly1*lz1
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| 203 |
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| 204 | call col3(totalh(1,1),vx(1,1,1,e),tlag(1,1,1,e,1,1),n)
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| 205 | call col3(totalh(1,2),vy(1,1,1,e),tlag(1,1,1,e,1,1),n)
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| 206 | if (if3d) call col3(totalh(1,3),vz(1,1,1,e),tlag(1,1,1,e,1,1),n)
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| 207 |
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| 208 | return
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| 209 | end
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| 210 |
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| 211 | c-----------------------------------------------------------------------
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| 212 |
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| 213 | subroutine flux_div_mini(e)
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| 214 | include 'SIZE'
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| 215 | include 'INPUT'
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| 216 | include 'GEOM'
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| 217 | include 'DXYZ'
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| 218 | include 'SOLN'
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| 219 | include 'CMTDATA'
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| 220 | parameter (ldd=lx1*ly1*lz1)
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| 221 | parameter (ldg=lx1**3,lwkd=2*ldg)
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| 222 | common /ctmp1/ ur(ldd),us(ldd),ut(ldd),ju(ldd),ud(ldd),tu(ldd)
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| 223 | real ju
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| 224 |
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| 225 | integer e
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| 226 |
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| 227 | nrstd=ldd
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| 228 | nxyz=lx1*ly1*lz1
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| 229 | mdm1=lx1-1
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| 230 |
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| 231 | call rzero(ur,nrstd)
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| 232 | call rzero(us,nrstd)
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| 233 | call rzero(ut,nrstd)
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| 234 | call rzero(ud,nrstd)
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| 235 | call rzero(tu,nrstd)
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| 236 |
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| 237 | if (if3d) then
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| 238 | call local_grad3(ur,us,ut,totalh(1,1),mdm1,1,dxm1,dxtm1)
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| 239 | do i=1,nxyz
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| 240 | ud(i) = jacmi(i,e)*(rxm1(i,1,1,e)*ur(i)
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| 241 | $ + sxm1(i,1,1,e)*us(i)
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| 242 | $ + txm1(i,1,1,e)*ut(i))
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| 243 | enddo
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| 244 | call local_grad3(ur,us,ut,totalh(1,2),mdm1,1,dxm1,dxtm1)
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| 245 | do i=1,nxyz ! confirmed to have no effect in 1D
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| 246 | ud(i)=ud(i)+jacmi(i,e)*(rym1(i,1,1,e)*ur(i)
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| 247 | $ + sym1(i,1,1,e)*us(i)
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| 248 | $ + tym1(i,1,1,e)*ut(i))
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| 249 | enddo
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| 250 | call local_grad3(ur,us,ut,totalh(1,3),mdm1,1,dxm1,dxtm1)
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| 251 | do i=1,nxyz ! confirmed to have no effect in 1D
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| 252 | ud(i)=ud(i)+jacmi(i,e)*(rzm1(i,1,1,e)*ur(i)
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| 253 | $ + szm1(i,1,1,e)*us(i)
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| 254 | $ + tzm1(i,1,1,e)*ut(i))
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| 255 | enddo
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| 256 | else
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| 257 | call local_grad2(ur,us,totalh(1,1),mdm1,1,dxm1,dxtm1)
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| 258 | do i=1,nxyz
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| 259 | ud(i) = jacmi(i,e)*(rxm1(i,1,1,e)*ur(i)
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| 260 | $ + sxm1(i,1,1,e)*us(i))
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| 261 | enddo
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| 262 | call local_grad2(ur,us,totalh(1,2),mdm1,1,dxm1,dxtm1)
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| 263 | do i=1,nxyz
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| 264 | ud(i)=ud(i)+jacmi(i,e)*(rym1(i,1,1,e)*ur(i)
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| 265 | $ + sym1(i,1,1,e)*us(i))
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| 266 | enddo
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| 267 | endif
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| 268 | call add2(res2(1,1,1,e,1),ud,nxyz)
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| 269 |
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| 270 | return
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| 271 | end
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| 272 |
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| 273 | !-----------------------------------------------------------------------
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| 274 |
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| 275 | subroutine resvisc(residual)
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| 276 | ! smooth residual-based entropy visc, defined by Guermond, Popov, whoever
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| 277 | ! DSAVG assumes IFFLOW to work correctly. IFHEAT still doesn't work with CMT-nek
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| 278 | include 'SIZE'
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| 279 | include 'TOTAL'
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| 280 | include 'CMTDATA'
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| 281 | include 'DG'
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| 282 | integer lfq,heresize,hdsize
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| 283 | parameter (lxyz=lx1*ly1*lz1)
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| 284 | real residual(lxyz,nelt)
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| 285 | integer e,f
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| 286 |
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| 287 | nxyz =lx1*ly1*lz1
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| 288 | nxz =lx1*lz1
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| 289 | nface=2*ldim
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| 290 | nxzf =nxz*nface
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| 291 | nfq =nxzf*nelt
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| 292 |
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| 293 | ! ensure continuity at faces. doing this before |abs| causes some cancellation that,
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| 294 | ! so far, appears to beneficially reduce spikiness at faces.
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| 295 |
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| 296 | do e=1,nelt
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| 297 | do i=1,nxyz
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| 298 | residual(i,e)=residual(i,e)*meshh(e)**2
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| 299 | enddo
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| 300 | enddo
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| 301 |
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| 302 | call dsavg(residual) ! signed, can cancel at faces. Hope it does
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| 303 |
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| 304 | do e=1,nelt
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| 305 | do i=1,nxyz
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| 306 | residual(i,e)=abs(residual(i,e))
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| 307 | enddo
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| 308 | enddo
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| 309 |
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| 310 | call cmult(residual,c_sub_e,nxyz*nelt)
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| 311 |
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| 312 | if (maxdiff .ne. 0) then
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| 313 | const=1.0/maxdiff
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| 314 | call cmult(residual,const,nxyz*nelt)
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| 315 | endif
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| 316 |
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| 317 | return
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| 318 | end
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| 319 |
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| 320 | !-----------------------------------------------------------------------
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| 321 |
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| 322 | subroutine evmsmooth(resvisc,wavevisc,endpoints)
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| 323 | include 'SIZE'
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| 324 | include 'INPUT'
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| 325 | real resvisc(lx1,ly1,lz1,nelt),wavevisc(lx1,ly1,lz1,nelt)
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| 326 | real rtmp
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| 327 | common /ctmp1/ rtmp(lx1,ly1,lz1)
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| 328 | ! are faces included in smoothing? if not (say they're fixed by dsavg) then
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| 329 | ! endpoints should be .false.
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| 330 | logical endpoints
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| 331 | integer e
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| 332 | ! clip residual viscosity and smooth it.
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| 333 | ! actually just smooth first and then clip it. Just average-with-my-neighbors for now
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| 334 | ! weight the neighbors according to GLL-spacing instead of uniform-grid
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| 335 | ! at a later date.
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| 336 |
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| 337 | nxyz=lx1*ly1*lz1
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| 338 | kstart=1
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| 339 | kend=lz1
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| 340 | rldim=1.0/ldim
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| 341 |
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| 342 | if (endpoints) then
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| 343 | istart=1
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| 344 | jstart=1
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| 345 | iend=lx1
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| 346 | jend=ly1
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| 347 | else
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| 348 | istart=2
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| 349 | jstart=2
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| 350 | iend=lx1-1
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| 351 | jend=ly1-1
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| 352 | if (if3d) then
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| 353 | kstart=2
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| 354 | kend=lz1-1
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| 355 | endif
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| 356 | endif
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| 357 |
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| 358 | ! yes I know this loop sucks and I need to write a matrix or something
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| 359 | do e=1,nelt
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| 360 | do i=1,nxyz
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| 361 | if (wavevisc(i,1,1,e).le. resvisc(i,1,1,e))
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| 362 | > resvisc(i,1,1,e)= wavevisc(i,1,1,e)
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| 363 | enddo
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| 364 | call copy(rtmp,resvisc(1,1,1,e),nxyz) ! really only for .false.
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| 365 | do iz=kstart,kend
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| 366 | if (if3d) then
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| 367 | km1=iz-1
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| 368 | kp1=iz+1
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| 369 | izm=km1
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| 370 | ! if (km1 .lt. 1) izm=iz ! bias towards {{face point}}
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| 371 | if (km1 .lt. 1) izm=kp1 ! Guermond symmetry
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| 372 | izp=kp1
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| 373 | ! if (kp1 .gt. lz1) izp=iz ! bias towards {{face point}}
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| 374 | if (kp1 .gt. lz1) izp=km1 ! Guermond symmetry
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| 375 | else
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| 376 | izm=iz
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| 377 | izp=iz
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| 378 | endif
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| 379 | do iy=jstart,jend
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| 380 | jm1=iy-1
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| 381 | jp1=iy+1
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| 382 | iym=jm1
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| 383 | ! if (jm1 .lt. 1) iym=iy ! bias towards {{face point}}
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| 384 | if (jm1 .lt. 1) iym=jp1 ! Guermond symmetry
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| 385 | iyp=jp1
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| 386 | ! if (jp1 .gt. ly1) iyp=iy ! bias toward {{face point}}
|
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| 387 | if (jp1 .gt. ly1) iyp=jm1 ! Guermond symmetry
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| 388 | do ix=istart,iend
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| 389 | im1=ix-1
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| 390 | ip1=ix+1
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| 391 | ixm=im1
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| 392 | ! if (im1 .lt. 1) ixm=ix ! bias towards {{face point}}
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| 393 | if (im1 .lt. 1) ixm=ip1 ! Guermond symmetry
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| 394 | ixp=ip1
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| 395 | ! if (ip1 .gt. lx1) ixp=ix ! bias towards {{face point}}
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| 396 | if (ip1 .gt. lx1) ixp=im1 ! Guermond symmetry
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| 397 | x0 = resvisc(ix ,iy ,iz ,e)
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| 398 | x1 = resvisc(ixm,iy ,iz ,e)
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| 399 | x2 = resvisc(ixp,iy ,iz ,e)
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| 400 | x3 = resvisc(ix ,iym,iz ,e)
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| 401 | x4 = resvisc(ix ,iyp,iz ,e)
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| 402 | if (if3d) then
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| 403 | x5 = resvisc(ix ,iy ,izm,e)
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| 404 | x6 = resvisc(ix ,iy ,izp,e)
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| 405 | else
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| 406 | x5=0.0
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| 407 | x6=0.0
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| 408 | endif
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| 409 | rtmp(ix,iy,iz)=0.25*(2.0*ldim*x0+x1+x2+x3+x4+x5+x6)
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| 410 | > *rldim
|
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| 411 | enddo
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| 412 | enddo
|
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| 413 | enddo
|
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| 414 | call copy(resvisc(1,1,1,e),rtmp,nxyz)
|
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| 415 | enddo
|
|---|
| 416 |
|
|---|
| 417 | return
|
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| 418 | end
|
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| 419 |
|
|---|
| 420 | !-----------------------------------------------------------------------
|
|---|
| 421 |
|
|---|
| 422 | subroutine wavevisc(numax)
|
|---|
| 423 | ! max entropy visc, defined by Guermond, Popov, whoever (chapter-verse)
|
|---|
| 424 | ! as
|
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| 425 | ! numax = c_max*h*max(dH/dU)
|
|---|
| 426 | ! in a given element
|
|---|
| 427 | include 'SIZE'
|
|---|
| 428 | include 'TOTAL'
|
|---|
| 429 | include 'CMTDATA'
|
|---|
| 430 | parameter (lxyz=lx1*ly1*lz1)
|
|---|
| 431 | common /scrns/ wavespeed(lxyz)
|
|---|
| 432 | real wavespeed
|
|---|
| 433 | real maxeig
|
|---|
| 434 | real numax(lxyz,nelt)
|
|---|
| 435 | integer e
|
|---|
| 436 |
|
|---|
| 437 | nxyz=lx1*ly1*lz1
|
|---|
| 438 |
|
|---|
| 439 | do e=1,nelt
|
|---|
| 440 | do i=1,nxyz
|
|---|
| 441 | wavespeed(i)=csound(i,1,1,e)+
|
|---|
| 442 | > sqrt(vx(i,1,1,e)**2+vy(i,1,1,e)**2+vz(i,1,1,e)**2)
|
|---|
| 443 | enddo
|
|---|
| 444 | maxeig=vlamax(wavespeed,nxyz)
|
|---|
| 445 | ! Zingan (2015) only. not long for this world
|
|---|
| 446 | ! rhomax(e)=vlamax(vtrans(1,1,1,e,irho),nxyz)
|
|---|
| 447 | do i=1,nxyz
|
|---|
| 448 | numax(i,e)=c_max*maxeig*meshh(e)
|
|---|
| 449 | enddo
|
|---|
| 450 | enddo
|
|---|
| 451 |
|
|---|
| 452 | call max_to_trilin(t(1,1,1,1,3))
|
|---|
| 453 |
|
|---|
| 454 | return
|
|---|
| 455 | end
|
|---|
| 456 |
|
|---|
| 457 | !-----------------------------------------------------------------------
|
|---|
| 458 |
|
|---|
| 459 | subroutine max_to_trilin(field)
|
|---|
| 460 | ! stupid subroutine to take a stupid uniform field and compute a trilinear
|
|---|
| 461 | ! tent between maximum shared values at the vertices.
|
|---|
| 462 | include 'SIZE'
|
|---|
| 463 | include 'TOTAL'
|
|---|
| 464 | real field(lx1,ly1,lz1,nelt)
|
|---|
| 465 | integer e
|
|---|
| 466 |
|
|---|
| 467 | nxyz=lx1*ly1*lz1
|
|---|
| 468 |
|
|---|
| 469 | ! get maxima on faces
|
|---|
| 470 | call dsop(field,'MAX',lx1,ly1,lz1)
|
|---|
| 471 |
|
|---|
| 472 | ! trilinear interpolation. you should adapt xyzlin to your needs instead
|
|---|
| 473 | do e=1,nelt
|
|---|
| 474 | p000=field(1, 1, 1, e)
|
|---|
| 475 | p100=field(lx1,1, 1, e)
|
|---|
| 476 | p010=field(1, ly1,1, e)
|
|---|
| 477 | p110=field(lx1,ly1,1, e)
|
|---|
| 478 | p001=field(1, 1, lz1,e)
|
|---|
| 479 | p101=field(lx1,1, lz1,e)
|
|---|
| 480 | p011=field(1, ly1,lz1,e)
|
|---|
| 481 | p111=field(lx1,ly1,lz1,e)
|
|---|
| 482 | c1=p100-p000
|
|---|
| 483 | c2=p010-p000
|
|---|
| 484 | c3=p001-p000
|
|---|
| 485 | c4=p110-p010-p100+p000
|
|---|
| 486 | c5=p011-p001-p010+p000
|
|---|
| 487 | c6=p101-p001-p100+p000
|
|---|
| 488 | c7=p111-p011-p101-p110+p100+p001+p010-p000
|
|---|
| 489 | rdx=1.0/(xm1(lx1,1,1,e)-xm1(1,1,1,e)) ! cubes only!!!
|
|---|
| 490 | rdy=1.0/(ym1(1,ly1,1,e)-ym1(1,1,1,e))
|
|---|
| 491 | rdz=0.0
|
|---|
| 492 | if(if3d) rdz=1.0/(zm1(1,1,lz1,e)-zm1(1,1,1,e))
|
|---|
| 493 | do i=1,nxyz
|
|---|
| 494 | deltax=rdx*(xm1(i,1,1,e)-xm1(1,1,1,e)) ! cubes only!!!
|
|---|
| 495 | deltay=rdy*(ym1(i,1,1,e)-ym1(1,1,1,e))
|
|---|
| 496 | deltaz=0.0
|
|---|
| 497 | if (if3d) deltaz=rdz*(zm1(i,1,1,e)-zm1(1,1,1,e))
|
|---|
| 498 | field(i,1,1,e)=p000+c1*deltax+c2*deltay+c3*deltaz+
|
|---|
| 499 | > c4*deltax*deltay+c5*deltay*deltaz+
|
|---|
| 500 | > c6*deltaz*deltax+c7*deltay*deltaz*deltax
|
|---|
| 501 | enddo
|
|---|
| 502 | enddo
|
|---|
| 503 |
|
|---|
| 504 | return
|
|---|
| 505 | end
|
|---|
| 506 |
|
|---|
| 507 | !-----------------------------------------------------------------------
|
|---|
| 508 |
|
|---|
| 509 | subroutine perssonperaire(shkdet,var,shtmp)
|
|---|
| 510 | ! Peraire & Persson (2006) Eq. 7
|
|---|
| 511 | include 'SIZE'
|
|---|
| 512 | include 'TOTAL'
|
|---|
| 513 | include 'CMTDATA'
|
|---|
| 514 | parameter (lxyz=lx1*ly1*lz1)
|
|---|
| 515 | common /scrns/ fvar (lxyz,lelt)
|
|---|
| 516 | ! $ , ytm1 (lx1,ly1,lz1,lelv)
|
|---|
| 517 | real shkdet(lxyz,nelt),var(lxyz,*),shtmp(lxyz,*)
|
|---|
| 518 | integer e
|
|---|
| 519 | ! this whole common block is atrocious
|
|---|
| 520 | common /CMTFILTERS/ intv(lx1,lx1),intt(lx1,lx1)
|
|---|
| 521 | $ , intvd(lxd,lxd),inttd(lxd,lxd)
|
|---|
| 522 | $ , wk1(lx1,lx1,lz1),wk2(lx1,lx1,lz1)
|
|---|
| 523 | $ , wkd1(lxd,lxd,lzd),wkd2(lxd,lxd,lzd)
|
|---|
| 524 | real intv, intt, intvd, inttd
|
|---|
| 525 | real kappa
|
|---|
| 526 | integer icalld
|
|---|
| 527 | save icalld
|
|---|
| 528 | data icalld/0/
|
|---|
| 529 |
|
|---|
| 530 | if (icalld.eq.0) then
|
|---|
| 531 | ncut=-110
|
|---|
| 532 | icalld=1
|
|---|
| 533 | call userfilt(intv,zgm1,lx1,nio)
|
|---|
| 534 | endif
|
|---|
| 535 |
|
|---|
| 536 | n=lx1*ly1*lz1
|
|---|
| 537 | ntot=n*nelt
|
|---|
| 538 |
|
|---|
| 539 | ! JH082418 Hardcoded threshold
|
|---|
| 540 | cpp=0.001
|
|---|
| 541 |
|
|---|
| 542 | call copy(fvar,var,ntot)
|
|---|
| 543 | call filterq(fvar,intv,lx1,lz1,wk1,wk2,intt,if3d,dmax)
|
|---|
| 544 |
|
|---|
| 545 | do e=1,nelt
|
|---|
| 546 | call sub3(shkdet(1,e),var(1,e),fvar(1,e),n) ! store u-u^ in shkdet
|
|---|
| 547 | shock_or_not=vlsc3(shkdet(1,e),shkdet(1,e),bm1(1,1,1,e),n)
|
|---|
| 548 | denom=vlsc3(var(1,e),var(1,e),bm1(1,1,1,e),n)
|
|---|
| 549 | if (denom .gt. 0.0) then ! mask this somehow. ifs are bad
|
|---|
| 550 | shock_or_not=(shock_or_not/denom)*(lx1-1)**4
|
|---|
| 551 | ! shock_or_not=log10(shock_or_not)
|
|---|
| 552 | if (shock_or_not .gt. cpp) then
|
|---|
| 553 | ! call cfill(shkdet(1,e),shock_or_not,n)
|
|---|
| 554 | call rone(shkdet(1,e),n)
|
|---|
| 555 | else
|
|---|
| 556 | call rzero(shkdet(1,e),n)
|
|---|
| 557 | endif
|
|---|
| 558 | else
|
|---|
| 559 | write(6,*) 'nid,iel=',nid,e
|
|---|
| 560 | write(6,*) 'variables that change sign are bad for shox'
|
|---|
| 561 | call exitt
|
|---|
| 562 | endif
|
|---|
| 563 | enddo
|
|---|
| 564 |
|
|---|
| 565 | return
|
|---|
| 566 | end
|
|---|
