setaux.f.html | |
Source file: setaux.f | |
Directory: /Users/rjl/git/rjleveque/clawpack-4.6.3/book/chap9/acoustics/interface | |
Converted: Mon Jan 21 2013 at 20:15:47 using clawcode2html | |
This documentation file will not reflect any later changes in the source file. |
c ============================================ subroutine setaux(maxmx,mbc,mx,xlower,dx,maux,aux) c ============================================ c c # set auxiliary arrays c # variable coefficient acoustics c # aux(i,1) = density rho in i'th cell c # aux(i,2) = sound speed c in i'th cell c c # Piecewise constant medium with single interface at x=0 c # Density and sound speed to left and right are set in setprob.f c c implicit double precision (a-h,o-z) dimension aux(1-mbc:maxmx+mbc, 2) common /comaux/ rhol,cl,rhor,cr open(unit=31,file='fort.aux',status='unknown',form='formatted') c do i=1-mbc,mx+mbc xcell = xlower + (i-0.5d0)*dx if (xcell .lt. 0.0d0) then aux(i,1) = rhol aux(i,2) = cl else aux(i,1) = rhor aux(i,2) = cr endif enddo do i=1,mx write(31,701) aux(i,1), aux(i,2) 701 format(2e16.6) enddo close(unit=31) c return end