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fl_injectheat.f90
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fl_injectheat.f90
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!==============================================================================
! Adding magma and latent heat in injection zone
! G. Ito 8/11/06
!==============================================================================
subroutine fl_injectheat
use arrays
include 'precision.inc' ! vs BI(Behn and Ito 2008): the same
include 'params.inc' ! vs BI: not the same
include 'arrays.inc' ! vs BI: not the same
! (J-1,I-1)------(J-1,I)----(J-1,I+1)
! | | |
! | a11 | a12 |
! | (j-1,i-1) | (j,i-1) |
! | | |
! (J,I-1)-------(J,I)--------(J,I+1)
! | | |
! | a21 | a22 |
! | (j-1,i) | (j,i) |
! | | |
! (J+1,I-1)------(J+1,I)----(J+1,I+1)
dimension njTinj(nz)
!nz = 41,amount of nodes on vertical direction, Hao
!print *,'nz =',nz
ninj=iinj2-iinj1+1 !new ninj(horizontal #nodes), iinj1(left bound of dike), iinj2(right bound)
!ninj = 2, number of nodes that covers the width of dike, Hao
iph = 3 ! phase of the dike
fdum=xlatheat/( cp(iph)*(tl(iph)-ts(iph)) ) !L/(Cp*(T_liq - T_sol))
ninjbot=jinj2 !new ninjbot, jinj2(bottom # of dike)
!print *,'iinj1 =', iinj1, 'iinj2=', iinj2, 'ninj=',ninj,'xlatheat=',xlatheat,'fdum=',fdum,'ninjbot=',ninjbot !Hao debug
!----------------------------------------
!don't understand this block (begin)
!----------------------------------------
do 110 i=iinj1,iinj2+1
!i=iinj1,iinj2+1
goto 222 !Tian Comment this block, it make ninjbot become weird (always equals to 1)
jcnt=1
njTinj(1) = ninjbot !Start: same code as in fl_rheol
do j = 1,nz-1
dcord = cord(1,i,2) - cord(j+1,i,2)
if(dcord.gt.Tcinj) then
njTinj(jcnt) = j
jcnt = jcnt+1
endif
end do
ninjbot = min(ninjbot,njTinj(1)) !End: same code as in fl_rheol
!print *,'ninjbot =',ninjbot !debug
222 continue
!----------------------------------------
!don't understand this block (end)
!----------------------------------------
do 100 j=jinj1,ninjbot+1
!print *,'j=',j
!-------------------------------------------------------------------------------
! Compute areas to centers of adjacent cells
!-------------------------------------------------------------------------------
i1=max0(i-1,1)
j1=max0(j-1,1)
i2=min0(i+1,nx)
j2=min0(j+1,nz)
dx11=0.5*(cord(j1,i ,1)-cord(j1,i1,1)+cord(j ,i ,1)-cord(j ,i1,1))
dy11=0.5*(cord(j1,i1,2)-cord(j ,i1,2)+cord(j1,i ,2)-cord(j ,i ,2))
dx12=0.5*(cord(j1,i2,1)-cord(j1,i ,1)+cord(j ,i2,1)-cord(j ,i ,1))
dy12=0.5*(cord(j1,i ,2)-cord(j ,i ,2)+cord(j1,i2,2)-cord(j ,i2,2))
dx21=0.5*(cord(j ,i ,1)-cord(j ,i1,1)+cord(j2,i ,1)-cord(j2,i1,1))
dy21=0.5*(cord(j ,i1,2)-cord(j2,i1,2)+cord(j ,i ,2)-cord(j2,i ,2))
dx22=0.5*(cord(j ,i2,1)-cord(j ,i ,1)+cord(j2,i2,1)-cord(j2,i ,1))
dy22=0.5*(cord(j ,i ,2)-cord(j2,i ,2)+cord(j ,i2,2)-cord(j2,i2,2))
a11=dabs(dx11*dy11)/4. !no real need for 1/4 but it reminds us areas are to center of element
a12=dabs(dx12*dy12)/4.
a21=dabs(dx21*dy21)/4.
a22=dabs(dx22*dy22)/4.
atot=a11+a12+a21+a22
! DABS is the specific intrinsic that returns the absolute value of a DOUBLE PRECISION (REAL*8) argument Hao
!-------------------------------------------------------------------------------
! Compute dT's
!-------------------------------------------------------------------------------
! different M values in the brittle and ductile zones - Olive 4/08
if (time.le.0.4*1e6*3.1536e7) then
rate_inject=rate_inject_brittle
else
rate_inject=rate_inject_brittle !rate_inject_ductile
! ratfac = 2.
endif
rfac=ratfac*rate_inject*dt/(dx11*dble(ninj)) ! no need to have ratfac
!print *,'rfac =',rfac,'ratfac =',ratfac,'rate_inject_2nd =',rate_inject,'ninj =',ninj !Hao debug
T0=0.25*(temp(j1,i1)+temp(j1,i)+temp(j,i1)+temp(j,i))
dtemp=dtemp_inj(T0,tl(iph),ts(iph),rfac,fdum)
dtemp=dmin1(dtemp,tl(iph)-T0)
dtemp11=dmax1(dtemp,0.0)
rfac=ratfac*rate_inject*dt/(dx12*dble(ninj))
T0=0.25*(temp(j1,i)+temp(j1,i2)+temp(j,i)+temp(j,i2))
dtemp=dtemp_inj(T0,tl(iph),ts(iph),rfac,fdum)
dtemp=dmin1(dtemp,tl(iph)-T0)
dtemp12=dmax1(dtemp,0.0)
rfac=ratfac*rate_inject*dt/(dx21*dble(ninj))
T0=0.25*(temp(j,i1)+temp(j,i)+temp(j2,i1)+temp(j2,i))
dtemp=dtemp_inj(T0,tl(iph),ts(iph),rfac,fdum)
dtemp=dmin1(dtemp,tl(iph)-T0)
dtemp21=dmax1(dtemp,0.0)
rfac=ratfac*rate_inject*dt/(dx22*dble(ninj))
T0=0.25*(temp(j,i)+temp(j,i2)+temp(j2,i)+temp(j2,i2))
dtemp=dtemp_inj(T0,tl(iph),ts(iph),rfac,fdum)
dtemp=dmin1(dtemp,tl(iph)-T0)
dtemp22=dmax1(dtemp,0.0)
!-------------------------------------------------------------------------------
! Eliminate contribution from elements outside diking zone
!-------------------------------------------------------------------------------
f11=1.0
f12=1.0
f21=1.0
f22=1.0
if (i.eq.iinj1) then
f11=0.
f21=0.
elseif (i.eq.iinj2+1) then
f12=0.
f22=0.
endif
if (j.eq.jinj1) then
f11=0.
f12=0.
elseif (j.eq.ninjbot+1) then
f21=0.
f22=0.
endif
!-------------------------------------------------------------------------------
! Update Nodal temperatures
!-------------------------------------------------------------------------------
dtemp_ave=(dtemp11*f11*a22+dtemp12*f12*a21+dtemp21*f21*a12+dtemp22*f22*a11)/atot
!print *,'dtemp_ave =',dtemp_ave
temp(j,i)=temp(j,i)+dtemp_ave
if(temp(j,i)>2000 .or. isnan(temp(j,i)) .or. temp(j,i)<0) then
! print *, 'j=',j,'i=',i,'dtemp_ave=',dtemp_ave ,'temp(',j,',',i,')=',temp(j ,i )
endif
!------------------------------------------------------------------------------------
! There is/was a bug that make dtemp_ave=NAN, with iinj1=1,
! but it goes away with this if statement. Keep and eye out!
!------------------------------------------------------------------------------------
if (dabs(dtemp_ave).gt.10.*tl(iph)) then
write(*,'(8ES11.3,3i4)') dtemp11, dtemp12, dtemp21, dtemp22, dtemp_ave, dble(ninj), &
rfac, atot, i,j,nloop
stop
endif
100 continue
110 continue
! Boundary conditions (top)
!
if (jinj1.eq.1) then
do i = iinj1,iinj2+1
temp(1,i) = t_top
!print *,'t_top =',t_top
end do
endif
! Boundary conditions: dt/dx =0 on left and right
!$DIR PREFER_PARALLEL
if (iinj1.eq.1) then
do j = jinj1,jinj2
temp(j ,1) = temp(j,2)
end do
endif
return
end
!==============================================================================
! Compute dT including effects of latent heat
!==============================================================================
function dtemp_inj(T0,Tliq,Tsol,rfac,fdum)
include 'precision.inc'
! Garrett's original implementation (Page 4 of his notes)
!Tdum=(T0*(1.-rfac) + Tliq*(1.+fdum)*rfac)/(1.0+fdum*rfac)
!if (Tdum .lt. Tsol) then
! dtemp_inj=( (Tliq-T0) + fdum*(Tliq-Tsol) )*rfac
!else
! dtemp_inj=(Tliq-T0)*(1+fdum)*rfac/(1.0+fdum*rfac)
!endif
!Revised by M. Behn Nov 2007
Tdum=(T0 + Tliq*rfac)/(1+rfac) !<?> What is Tdum
!print *,'Tdum =',Tdum !Hao debug
if (Tdum .lt. Tsol) then
dtemp_inj=( (Tliq-T0) + fdum*(Tliq-Tsol) ) * (rfac/(1+rfac))
!<?> why rfac/(1+rfac) isn't rfac is melt fraction in dike zone?
!else
! dtemp_inj=(Tliq-T0) * (rfac/(1+rfac))
elseif (Tdum.lt.Tliq .and. Tdum.ge.Tsol) then
dtemp_inj=(Tliq-T0) * (rfac/(1+rfac))
elseif (Tdum.ge.Tliq) then
dtemp_inj = 0.
endif
return
end