setprob.f.html
Source file:   setprob.f
Directory:   /Users/rjl/clawpack_src/clawpack_master/apps/fvmbook/chap7/acouinflow
Converted:   Sat Mar 23 2024 at 11:05:19   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*12 fname
      common /cparam/ rho,bulk,cc,zz   
      common /combc/ omega
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     # density:
      read(7,*) rho

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

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

c     # impedance:
      zz = cc*rho

c     # frequency omega for boundary conditions:
      read(7,*) omega

      return
      end