setprob.f.html
Source file:   setprob.f
Directory:   /Users/rjl/git/rjleveque/clawpack-4.6.3/doc/sphinx/example-acoustics-2d/1drad
Converted:   Mon Jan 21 2013 at 20:15:54   using clawcode2html
This documentation file will not reflect any later changes in the source file.

 
      subroutine setprob
      implicit double precision (a-h,o-z)
      character*25 fname
      common /cparam/ rho,bulk,cc,zz   
      common /cqinit/ beta
      common /comsrc/ ndim
      common /cwidth/ width
c
c     # Set the material parameters for the acoustic equations
c     # Passed to the Riemann solver rp1.f in a common block
c
c
      iunit = 7
      fname = 'setprob.data'
c     # open the unit with new routine from Clawpack 4.4 to skip over
c     # comment lines starting with #:
      call opendatafile(iunit, fname)
                

c     # ndim = space dimensions (2 = cylindrical symmetry, 3 = spherical)
      read(7,*) ndim

c     # density:
      read(7,*) rho

c     # bulk modulus:
      read(7,*) bulk

c     # sound speed:
      cc = dsqrt(bulk/rho)

c     # impedance:
      zz = cc*rho

c     # width used in qinit:
      read(7,*) width


      return
      end