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qinit.f.html |
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Source file: qinit.f
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Directory: /Users/rjl/clawapps/shallow/applications/shallow/1d/dambreak
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Converted: Wed Aug 1 2012 at 10:11:24
using clawcode2html
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This documentation file will
not reflect any later changes in the source file.
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c
c
c =========================================================
subroutine qinit(maxmx,meqn,mbc,mx,xlower,dx,q,maux,aux)
c =========================================================
c
c # Set initial conditions for q.
c # Pulse in pressure, zero velocity
c
c
implicit double precision (a-h,o-z)
dimension q(1-mbc:maxmx+mbc, meqn)
dimension aux(1-mbc:maxmx+mbc, *)
common /cqinit/ sloc,hl,ul,hr,ur
c
c
c # data in left state:
hul = hl*ul
c
c # data in right state:
hur = hr*ur
c
do 150 i=1,mx
xedge = xlower + (i-1)*dx
if (xedge .lt. sloc) then
q(i,1) = hl
q(i,2) = hul
else
q(i,1) = hr
q(i,2) = hur
endif
150 continue
c
return
end