-
Dave Whipp authoredDave Whipp authored
make_matrix.f90 19.53 KiB
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!------------------------------------------------------------------------------|
!------------------------------------------------------------------------------|
! |
! MAKE_MATRIX Jun. 2007 |
! |
!------------------------------------------------------------------------------|
!------------------------------------------------------------------------------|
subroutine make_matrix (params,ndof,ael,bel,icon,xg,yg,zg,kfix,viscosity0, &
density,penalty,expon,activationenergy,expansion, &
diffusivity,heat,plasticity_type,plasticity_parameters,&
unode,vnode,wnode,temp,pressure,strain,is_plastic, &
nnode,ffff,r0,s0,t0,rst,ileaves,eviscosity,vbounded, &
threadinfo,weight)
!------------------------------------------------------------------------------|
!(((((((((((((((( Purpose of the routine ))))))))))))))))))))))))))))))))))))))
!------------------------------------------------------------------------------|
! note that this routine is called to create the FE matrix and rhs vector
! for both the Stokes (ndof=3) and Energy equations (ndof=1)
! mpe : number of nodes per element (8)
! ndof : number of degrees of freedom per node (3 or 1)
! ael : computed finite element matrix
! bel : computed rhs vector
! icon : connectivity array for the current element
! xg,yg,zg : global coordinate arrays of length nnode
! kfix : bc array of length ndof*nnode
! (kfix=1 means the dof is fixed to the value stored in velo)
! viscosity : viscosity
! density : density at zero temperature (in C)
! penalty : incompressibility penalty factor
! penaltyg : penalty factor to impose bc
! expon : nonlinear viscosity exponent
! unode,vnode,wnode : velocity array (obtained from previous time step or at
! least containing the proper velocity at the fixed dofs)
! strain : total accumulated strain as interpolated from the 3D cloud
! nnode : number of nodes
! f : global rhs vector
!------------------------------------------------------------------------------|
!(((((((((((((((( declaration of the subroutine arguments ))))))))))))))))))))
!------------------------------------------------------------------------------|
use threads
use definitions
use gauss
use constants
use invariants
implicit none
type(parameters) params
integer ndof
double precision ael(params%mpe*ndof,params%mpe*ndof)
double precision bel(params%mpe*ndof)
integer icon(params%mpe)
double precision xg(nnode),yg(nnode),zg(nnode)
integer kfix(nnode*ndof)
double precision viscosity0double precision density
double precision penalty
double precision expon
double precision activationenergy
double precision expansion
double precision diffusivity
double precision heat
character (len=8) plasticity_type
double precision plasticity_parameters(9)
double precision unode(nnode),vnode(nnode),wnode(nnode)
double precision temp(nnode)
double precision pressure
double precision strain(nnode)
integer nnode
double precision ffff(nnode*ndof)
double precision r0,s0,t0,rst
integer ileaves
double precision eviscosity
logical vbounded
logical is_plastic
type (thread) threadinfo
double precision weight
!------------------------------------------------------------------------------|
!(((((((((((((((( declaration of the subroutine internal variables )))))))))))))
!------------------------------------------------------------------------------|
logical is_plastic_temp,flag_vrm_pb
integer i,j,k,k1,k2,k3,ii,jj,ij,iint,nint,nb,err,ic
integer iproc,nproc,ierr,mpe
double precision eps,yield,fail,fixt
double precision r,s,t,w,volume,vol
double precision tr,straintot
double precision xcond,xmass,aref
double precision exx,eyy,ezz,exy,eyz,ezx,e2d,e3d
double precision f1(3,3),defgrad(3,3)
double precision detf1,detf,e2dref,viscomean
double precision viscosity,compressibility,temperature
double precision velox,veloy,veloz,tau,uvwnorm,xmin,xmax,ymin,ymax
double precision zmin,zmax,dx,dy,dz,alpha,J2d,J3d
double precision jcb(3,3),jcbi(3,3),jcbp(3,3),jcbip(3,3),d(6,6),dl(6,6)
double precision,dimension(:),allocatable :: x,y,z,tnode,be
double precision,dimension(:),allocatable :: h,dhdr,dhds,dhdt,ht
double precision,dimension(:),allocatable :: dhdx,dhdy,dhdz
double precision,dimension(:),allocatable :: vel
double precision,dimension(:,:),allocatable :: b,bd,bl,aelp
!-------------------------------------------------------------------------------
!-------------------------------------------------------------------------------
INCLUDE 'mpif.h'
call mpi_comm_size (mpi_comm_world,nproc,ierr)
call mpi_comm_rank (mpi_comm_world,iproc,ierr)
compressibility=penalty
mpe=params%mpe
eps=tiny(eps)
nint=8
nb=6
if (ndof.eq.1) nb=3
allocate (x(mpe),stat=err) ; if (err.ne.0) call stop_run ('Error alloc x in make_matrix$')
allocate (y(mpe),stat=err) ; if (err.ne.0) call stop_run ('Error alloc y in make_matrix$')
allocate (z(mpe),stat=err) ; if (err.ne.0) call stop_run ('Error alloc z in make_matrix$')
allocate (tnode(mpe),stat=err) ; if (err.ne.0) call stop_run ('Error alloc tnode in make_matrix$')
allocate (be(mpe*ndof),stat=err) ; if (err.ne.0) call stop_run ('Error alloc be in make_matrix$')allocate (h(mpe),stat=err) ; if (err.ne.0) call stop_run ('Error alloc h in make_matrix$')
allocate (dhdr(mpe),stat=err) ; if (err.ne.0) call stop_run ('Error alloc dhdr in make_matrix$')
allocate (dhds(mpe),stat=err) ; if (err.ne.0) call stop_run ('Error alloc dhds in make_matrix$')
allocate (dhdt(mpe),stat=err) ; if (err.ne.0) call stop_run ('Error alloc dhdt in make_matrix$')
allocate (ht(mpe),stat=err) ; if (err.ne.0) call stop_run ('Error alloc ht in make_matrix$')
allocate (dhdx(mpe),stat=err) ; if (err.ne.0) call stop_run ('Error alloc dhdx in make_matrix$')
allocate (dhdy(mpe),stat=err) ; if (err.ne.0) call stop_run ('Error alloc dhdy in make_matrix$')
allocate (dhdz(mpe),stat=err) ; if (err.ne.0) call stop_run ('Error alloc dhdz in make_matrix$')
allocate (b(ndof*mpe,nb),stat=err) ; if (err.ne.0) call stop_run ('Error alloc b in make_matrix$')
allocate (bd(ndof*mpe,nb),stat=err) ; if (err.ne.0) call stop_run ('Error alloc bd in make_matrix$')
allocate (bl(ndof*mpe,nb),stat=err) ; if (err.ne.0) call stop_run ('Error alloc bl in make_matrix$')
allocate (aelp(mpe*ndof,mpe*ndof),stat=err) ; if (err.ne.0) call stop_run ('Error alloc aelp in make_matrix$')
allocate (vel(mpe*ndof),stat=err) ; if (err.ne.0) call stop_run ('Error alloc vel in make_matrix$')
do k=1,mpe
x(k)=xg(icon(k))
y(k)=yg(icon(k))
z(k)=zg(icon(k))*params%vex
tnode(k)=temp(icon(k))
enddo
ael=0.d0
aelp=0.d0
be=0.d0
bel=0.d0
bl=0.d0
vol=0.d0
!-------------------------------------------------------------------------------
! ndof=3
!-------------------------------------------------------------------------------
if (ndof.eq.1) goto 1111
weight=0.d0
! first add viscosity term (8 point integration)
is_plastic=.false.
is_plastic_temp=.false.
viscomean=0.d0
do iint=1,nint
r=r0+rst*(rr(iint)+1.d0)/2.d0
s=s0+rst*(ss(iint)+1.d0)/2.d0
t=t0+rst*(tt(iint)+1.d0)/2.d0
w=ww(iint)
call compute_dhdx_dhdy_dhdz (mpe,r,s,t,x,y,z,dhdx,dhdy,dhdz,volume)
h(1)=(1.d0-r)*(1.d0-s)*(1.d0-t)/8.d0
h(2)=(1.d0+r)*(1.d0-s)*(1.d0-t)/8.d0
h(3)=(1.d0-r)*(1.d0+s)*(1.d0-t)/8.d0
h(4)=(1.d0+r)*(1.d0+s)*(1.d0-t)/8.d0
h(5)=(1.d0-r)*(1.d0-s)*(1.d0+t)/8.d0
h(6)=(1.d0+r)*(1.d0-s)*(1.d0+t)/8.d0
h(7)=(1.d0-r)*(1.d0+s)*(1.d0+t)/8.d0
h(8)=(1.d0+r)*(1.d0+s)*(1.d0+t)/8.d0
temperature=0.d0
do k=1,mpe
temperature=temperature+h(k)*tnode(k)
enddo
exx=0.d0
eyy=0.d0
ezz=0.d0
exy=0.d0
eyz=0.d0
ezx=0.d0
do k=1,mpe ic=icon(k)
exx=exx+dhdx(k)*unode(ic)
eyy=eyy+dhdy(k)*vnode(ic)
ezz=ezz+dhdz(k)*wnode(ic)
exy=exy+(dhdx(k)*vnode(ic)+dhdy(k)*unode(ic))/2.d0
eyz=eyz+(dhdy(k)*wnode(ic)+dhdz(k)*vnode(ic))/2.d0
ezx=ezx+(dhdz(k)*unode(ic)+dhdx(k)*wnode(ic))/2.d0
enddo
call deviatoric (exx,eyy,ezz,exy,eyz,ezx)
J2d=second_invariant(exx,eyy,ezz,exy,eyz,ezx)
J3d=third_invariant (exx,eyy,ezz,exy,eyz,ezx)
e2d=0.d0
if (J2d.ne.0.d0) e2d=sqrt(J2d)
straintot=0.d0
do k=1,mpe
straintot=straintot+h(k)*strain(icon(k))
enddo
! if (straintot.gt.plasticity_parameters(3)) &
! write(*,'(4es15.6)') sum(x)/8.d0,sum(y)/8.d0,sum(z)/8.d0,straintot
e2dref=1.d0
viscosity=viscosity0
if (e2d.ne.0.d0 .and. expon.ne.1.d0) viscosity=viscosity*(e2d/e2dref)**(1.d0/expon-1.d0)
viscosity=viscosity*exp(activationenergy/(expon*Rgas*(temperature*params%tempscale+273.15d0)))
if (trim(plasticity_type)/='No') &
call vrm (J2d,J3d,compressibility,viscosity,pressure,plasticity_parameters, &
plasticity_type,is_plastic_temp,flag_vrm_pb,straintot)
is_plastic=is_plastic.or.is_plastic_temp
if (params%viscositymax.ge.0.d0) then
viscosity=min(params%viscositymax,viscosity)
end if
if (params%viscositymin.ge.0.d0) then
viscosity=max(params%viscositymin,viscosity)
end if
viscomean=viscomean+viscosity
d=0.d0
d(1,1)=viscosity*2.d0
d(2,2)=viscosity*2.d0
d(3,3)=viscosity*2.d0
d(4,4)=viscosity
d(5,5)=viscosity
d(6,6)=viscosity
do k=1,mpe
k1=(k-1)*3+1
k2=(k-1)*3+2
k3=(k-1)*3+3
b(k1,1)=dhdx(k)
b(k2,1)=0.d0
b(k3,1)=0.d0
b(k1,2)=0.d0
b(k2,2)=dhdy(k)
b(k3,2)=0.d0
b(k1,3)=0.d0
b(k2,3)=0.d0
b(k3,3)=dhdz(k)
b(k1,4)=0.d0
b(k2,4)=dhdz(k)
b(k3,4)=dhdy(k)
b(k1,5)=dhdz(k) b(k2,5)=0.d0
b(k3,5)=dhdx(k)
b(k1,6)=dhdy(k)
b(k2,6)=dhdx(k)
b(k3,6)=0.d0
enddo
do k=1,mpe
k1=(k-1)*3+1
k2=(k-1)*3+2
k3=(k-1)*3+3
bl(k1,1)=bl(k1,1)+dhdx(k)*volume*w
bl(k2,2)=bl(k2,2)+dhdy(k)*volume*w
bl(k3,3)=bl(k3,3)+dhdz(k)*volume*w
bl(k2,4)=bl(k2,4)+dhdz(k)*volume*w
bl(k3,4)=bl(k3,4)+dhdy(k)*volume*w
bl(k1,5)=bl(k1,5)+dhdz(k)*volume*w
bl(k3,5)=bl(k3,5)+dhdx(k)*volume*w
bl(k1,6)=bl(k1,6)+dhdy(k)*volume*w
bl(k2,6)=bl(k2,6)+dhdx(k)*volume*w
enddo
vol=vol+volume*w
weight=weight+volume*w*density
do j=1,mpe*ndof
do i=1,6
bd(j,i)=0.d0
do k=1,6
bd(j,i)=bd(j,i)+b(j,k)*d(k,i)
enddo
enddo
enddo
do j=1,mpe*ndof
do i=1,mpe*ndof
do k=1,6
ael(i,j)=ael(i,j)+b(i,k)*bd(j,k)*volume*w
enddo
enddo
enddo
do j=1,mpe
jj=(j-1)*ndof+ndof
!bel(jj)=bel(jj)+h(j)*volume*w*density*(1.d0-expansion*temperature*params%tempscale)
bel(jj)=bel(jj)+h(j)*volume*w*density
enddo
enddo
! second add compressibility term (1 point integration)
viscomean=viscomean/nint
eviscosity=viscomean
!viscomean=1.d0
dl=0.d0
dl(1,1)=compressibility*viscomean
dl(1,2)=compressibility*viscomean
dl(1,3)=compressibility*viscomean
dl(2,1)=compressibility*viscomean
dl(2,2)=compressibility*viscomean
dl(2,3)=compressibility*viscomean
dl(3,1)=compressibility*viscomean
dl(3,2)=compressibility*viscomean
dl(3,3)=compressibility*viscomean
r=0.d0s=0.d0
t=0.d0
w=8.d0
!added by Jean on 13/2/08
! r=r0+rst*(r+1.d0)/2.d0
! s=s0+rst*(s+1.d0)/2.d0
! t=t0+rst*(t+1.d0)/2.d0
! w=w
! up to here
! was wrong...
call compute_dhdx_dhdy_dhdz (mpe,r,s,t,x,y,z,dhdx,dhdy,dhdz,volume)
!----------effective viscosity--------------------------
!exx=0.d0
!eyy=0.d0
!ezz=0.d0
!exy=0.d0
!eyz=0.d0
!ezx=0.d0
!do k=1,mpe
! ic=icon(k)
! exx=exx+dhdx(k)*unode(ic)
! eyy=eyy+dhdy(k)*vnode(ic)
! ezz=ezz+dhdz(k)*wnode(ic)
! exy=exy+(dhdx(k)*vnode(ic)+dhdy(k)*unode(ic))/2.d0
! eyz=eyz+(dhdy(k)*wnode(ic)+dhdz(k)*vnode(ic))/2.d0
! ezx=ezx+(dhdz(k)*unode(ic)+dhdx(k)*wnode(ic))/2.d0
!enddo
!call deviatoric (exx,eyy,ezz,exy,eyz,ezx)
!
!J2d=second_invariant (exx,eyy,ezz,exy,eyz,ezx)
!J3d=third_invariant (exx,eyy,ezz,exy,eyz,ezx)
!
!e2d=0.d0
!if (J2d.ne.0.d0) e2d=sqrt(J2d)
!
!e2dref=1.d0
!eviscosity=viscosity0
!if (e2d.ne.0.d0 .and. expon.ne.1.d0) eviscosity=eviscosity*(e2d/e2dref)**(1.d0/expon-1.d0)
!viscosity=viscosity*exp(activationenergy/(expon*Rgas*(temperature*params%tempscale+273.15d0)))
!
!if (trim(plasticity_type)/='No') &
!call vrm(J2d,J3d,eviscosity,pressure,plasticity_parameters,plasticity_type,is_plastic_dummy,flag_vrm_pb)
!----------effective viscosity--------------------------
do k=1,mpe
k1=(k-1)*3+1
k2=(k-1)*3+2
k3=(k-1)*3+3
b(k1,1)=dhdx(k)
b(k2,1)=0.d0
b(k3,1)=0.d0
b(k1,2)=0.d0
b(k2,2)=dhdy(k)
b(k3,2)=0.d0
b(k1,3)=0.d0
b(k2,3)=0.d0
b(k3,3)=dhdz(k)
b(k1,4)=0.d0
b(k2,4)=dhdz(k)
b(k3,4)=dhdy(k)
b(k1,5)=dhdz(k)
b(k2,5)=0.d0
b(k3,5)=dhdx(k)
b(k1,6)=dhdy(k)
b(k2,6)=dhdx(k) b(k3,6)=0.d0
enddo
do j=1,mpe*ndof
do i=1,6
bd(j,i)=0.d0
do k=1,6
bd(j,i)=bd(j,i)+b(j,k)*dl(k,i)
enddo
enddo
enddo
do j=1,mpe*ndof
do i=1,mpe*ndof
do k=1,6
ael(i,j)=ael(i,j)+bd(i,k)*b(j,k)*volume*w
enddo
enddo
enddo
!do i=1,mpe*ndof
! do j=1,mpe*ndof
! if (abs(ael(i,j)-ael(j,i))>eps) stop 'Ael po symmetric'
! end do
!end do
! third add fixed velocity boundary conditions
do ii=1,mpe
do k=1,ndof
ij=(icon(ii)-1)*ndof+k
if (kfix(ij).eq.1) then
if (k.eq.1) fixt=unode(icon(ii))
if (k.eq.2) fixt=vnode(icon(ii))
if (k.eq.3) fixt=wnode(icon(ii))
i=(ii-1)*ndof+k
aref=ael(i,i)
do j=1,mpe*ndof
bel(j)=bel(j)-ael(j,i)*fixt
ael(i,j)=0.d0
ael(j,i)=0.d0
enddo
ael(i,i)=aref
bel(i)=aref*fixt
! ael(i,i)=1.d0*penaltyg
! bel(i)=fixt*penaltyg
endif
enddo
enddo
goto 1112
1111 continue
!-------------------------------------------------------------------------------
! temperature calculations
!-------------------------------------------------------------------------------
alpha=1.d0
do iint=1,nint
r=r0+rst*(rr(iint)+1.d0)/2.d0
s=s0+rst*(ss(iint)+1.d0)/2.d0
t=t0+rst*(tt(iint)+1.d0)/2.d0
w=ww(iint)
h(1)=(1.d0-r)*(1.d0-s)*(1.d0-t)/8.d0
h(2)=(1.d0+r)*(1.d0-s)*(1.d0-t)/8.d0
h(3)=(1.d0-r)*(1.d0+s)*(1.d0-t)/8.d0 h(4)=(1.d0+r)*(1.d0+s)*(1.d0-t)/8.d0
h(5)=(1.d0-r)*(1.d0-s)*(1.d0+t)/8.d0
h(6)=(1.d0+r)*(1.d0-s)*(1.d0+t)/8.d0
h(7)=(1.d0-r)*(1.d0+s)*(1.d0+t)/8.d0
h(8)=(1.d0+r)*(1.d0+s)*(1.d0+t)/8.d0
velox=0.d0
veloy=0.d0
veloz=0.d0
do k=1,mpe
ic=icon(k)
velox=velox+h(k)*unode(ic)
veloy=veloy+h(k)*vnode(ic)
veloz=veloz+h(k)*wnode(ic)
enddo
dhdr(1)=-(1.d0-s)*(1.d0-t)/8.d0
dhdr(2)=(1.d0-s)*(1.d0-t)/8.d0
dhdr(3)=-(1.d0+s)*(1.d0-t)/8.d0
dhdr(4)=(1.d0+s)*(1.d0-t)/8.d0
dhdr(5)=-(1.d0-s)*(1.d0+t)/8.d0
dhdr(6)=(1.d0-s)*(1.d0+t)/8.d0
dhdr(7)=-(1.d0+s)*(1.d0+t)/8.d0
dhdr(8)=(1.d0+s)*(1.d0+t)/8.d0
dhds(1)=-(1.d0-r)*(1.d0-t)/8.d0
dhds(2)=-(1.d0+r)*(1.d0-t)/8.d0
dhds(3)=(1.d0-r)*(1.d0-t)/8.d0
dhds(4)=(1.d0+r)*(1.d0-t)/8.d0
dhds(5)=-(1.d0-r)*(1.d0+t)/8.d0
dhds(6)=-(1.d0+r)*(1.d0+t)/8.d0
dhds(7)=(1.d0-r)*(1.d0+t)/8.d0
dhds(8)=(1.d0+r)*(1.d0+t)/8.d0
dhdt(1)=-(1.d0-r)*(1.d0-s)/8.d0
dhdt(2)=-(1.d0+r)*(1.d0-s)/8.d0
dhdt(3)=-(1.d0-r)*(1.d0+s)/8.d0
dhdt(4)=-(1.d0+r)*(1.d0+s)/8.d0
dhdt(5)=(1.d0-r)*(1.d0-s)/8.d0
dhdt(6)=(1.d0+r)*(1.d0-s)/8.d0
dhdt(7)=(1.d0-r)*(1.d0+s)/8.d0
dhdt(8)=(1.d0+r)*(1.d0+s)/8.d0
jcb=0.
do k=1,mpe
jcb(1,1)=jcb(1,1)+dhdr(k)*x(k)
jcb(1,2)=jcb(1,2)+dhdr(k)*y(k)
jcb(1,3)=jcb(1,3)+dhdr(k)*z(k)
jcb(2,1)=jcb(2,1)+dhds(k)*x(k)
jcb(2,2)=jcb(2,2)+dhds(k)*y(k)
jcb(2,3)=jcb(2,3)+dhds(k)*z(k)
jcb(3,1)=jcb(3,1)+dhdt(k)*x(k)
jcb(3,2)=jcb(3,2)+dhdt(k)*y(k)
jcb(3,3)=jcb(3,3)+dhdt(k)*z(k)
enddo
volume=jcb(1,1)*jcb(2,2)*jcb(3,3) &
+jcb(1,2)*jcb(2,3)*jcb(3,1) &
+jcb(2,1)*jcb(3,2)*jcb(1,3) &
-jcb(1,3)*jcb(2,2)*jcb(3,1) &
-jcb(1,2)*jcb(2,1)*jcb(3,3) &
-jcb(2,3)*jcb(3,2)*jcb(1,1)
if (volume.le.eps) then
if (iproc.eq.0) call write_error_vtk (ileaves,volume,icon,x,y,z)
call stop_run('Element bow-tied or collapsed in make_matrix temperature$')
endif
jcbi(1,1)=(jcb(2,2)*jcb(3,3)-jcb(2,3)*jcb(3,2))/volume
jcbi(2,1)=(jcb(2,3)*jcb(3,1)-jcb(2,1)*jcb(3,3))/volume
jcbi(3,1)=(jcb(2,1)*jcb(3,2)-jcb(2,2)*jcb(3,1))/volume
jcbi(1,2)=(jcb(1,3)*jcb(3,2)-jcb(1,2)*jcb(3,3))/volume jcbi(2,2)=(jcb(1,1)*jcb(3,3)-jcb(1,3)*jcb(3,1))/volume
jcbi(3,2)=(jcb(1,2)*jcb(3,1)-jcb(1,1)*jcb(3,2))/volume
jcbi(1,3)=(jcb(1,2)*jcb(2,3)-jcb(1,3)*jcb(2,2))/volume
jcbi(2,3)=(jcb(1,3)*jcb(2,1)-jcb(1,1)*jcb(2,3))/volume
jcbi(3,3)=(jcb(1,1)*jcb(2,2)-jcb(1,2)*jcb(2,1))/volume
do k=1,mpe
do i=1,3
b(k,i)=jcbi(i,1)*dhdr(k)+jcbi(i,2)*dhds(k)+jcbi(i,3)*dhdt(k)
enddo
enddo
vol=vol+volume*w
uvwnorm=velox**2+veloy**2+veloz**2
xmin=minval(x)
xmax=maxval(x)
dx=xmax-xmin
ymin=minval(y)
ymax=maxval(y)
dy=ymax-ymin
zmin=minval(z)
zmax=maxval(z)
dz=zmax-zmin
if (uvwnorm.lt.tiny(uvwnorm)) then
tau=0.d0
else
tau=(abs(velox)*dx+abs(veloy)*dy+abs(veloz)*dz)/sqrt(15.d0)/uvwnorm
endif
do k=1,mpe
ht(k)=h(k)+tau*(velox*b(k,1)+veloy*b(k,2)+veloz*b(k,3))
enddo
do j=1,mpe
bel(j)=bel(j)+h(j)*params%dt*heat*volume*w
do i=1,mpe
! xcond=diffusivity*(b(i,1)*b(j,1)+b(i,2)*b(j,2)+b(i,3)*b(j,3))*volume
xcond=diffusivity*(b(i,1)*b(j,1)+b(i,2)*b(j,2)+b(i,3)*b(j,3))*volume &
+ht(i)*(velox*b(j,1)+veloy*b(j,2)+veloz*b(j,3))*volume
xmass=h(i)*h(j)*volume
ael(i,j)=ael(i,j)+(xmass+params%dt*xcond*alpha)*w
aelp(i,j)=aelp(i,j)+(xmass-params%dt*xcond*(1.d0-alpha))*w
enddo
enddo
enddo
do i=1,mpe
do j=1,mpe
bel(i)=bel(i)+aelp(i,j)*temp(icon(j))
enddo
enddo
! third add fixed temperature boundary conditions
do i=1,mpe
ic=icon(i)
if (kfix(ic).eq.1) then
fixt=temp(ic)
do j=1,mpe
bel(j)=bel(j)-ael(j,i)*fixt
ael(i,j)=0.d0
ael(j,i)=0.d0
enddo
ael(i,i)=1.d0*vol
bel(i)=fixt*vol
endif
enddo
1112 continue
deallocate (x)
deallocate (y)
deallocate (z)
deallocate (be)
deallocate (tnode)
deallocate (h)
deallocate (dhdr)
deallocate (dhds)
deallocate (dhdt)
deallocate (ht)
deallocate (dhdx)
deallocate (dhdy)
deallocate (dhdz)
deallocate (b)
deallocate (bd)
deallocate (bl)
deallocate (aelp)
deallocate (vel)
return
end
!-------------------------------------------------------------------------------
!-------------------------------------------------------------------------------