c
c Copyright (C) 2003-2007 California Institute of Technology
c Ralf Deiterding, ralf@cacr.caltech.edu
c
c =====================================================
subroutine ic(maxmx,maxmy,maxmz,meqn,mbc,mx,my,mz,
& x,y,z,dx,dy,dz,q)
c =====================================================
c
implicit double precision (a-h,o-z)
c
include "cuser.i"
c
dimension q(meqn, 1-mbc:maxmx+mbc, 1-mbc:maxmy+mbc,
& 1-mbc:maxmz+mbc)
dimension x(1-mbc:maxmx+mbc),y(1-mbc:maxmy+mbc),
& z(1-mbc:maxmz+mbc)
c
do 60 k = 1, mz
do 60 j = 1, my
do 60 i = 1, mx
f = 0.5d0*(dtanh(500.d0*(x(i)-as))+1.d0)
rho = (1.d0-f)*rhoo+f*rhoi
u = (1.d0-f)*uo+f*ui
p = (1.d0-f)*po+f*pi
gam = (1.d0-f)*g(2)+f*g(1)
pin = (1.d0-f)*pinf(2)+f*pinf(1)
q(1,i,j,k) = rho
q(2,i,j,k) = u*rho
q(3,i,j,k) = 0.d0
q(4,i,j,k) = 0.d0
q(6,i,j,k) = 1.d0/(gam-1.d0)
q(7,i,j,k) = gam*pin/(gam-1.d0)
q(5,i,j,k) = p*q(6,i,j,k)+q(7,i,j,k)+
& 0.5d0*q(2,i,j,k)**2/q(1,i,j,k)
call tintp(x(i),q(1,i,j,k),meqn)
60 continue
c
return
end
c
c **************************************************************
c
subroutine tintp(x,q,meqn)
implicit double precision(a-h,o-z)
c
include "cuser.i"
dimension q(meqn)
c
do i = 1, Nread-1
if (x.ge.xtab(i).and.x.le.xtab(i+1)) then
alpha = (x-xtab(i))/(xtab(i+1)-xtab(i))
rho = (1.d0-alpha)*qtab(1,i) + alpha*qtab(1,i+1)
u = (1.d0-alpha)*qtab(2,i) + alpha*qtab(2,i+1)
p = (1.d0-alpha)*qtab(3,i) + alpha*qtab(3,i+1)
q(1) = rho
q(2) = u*rho
q(5) = p*q(6) + q(7) + 0.5d0*rho*u**2
endif
enddo
c
return
end