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clawpack/applications/euler/3d/PitIncident/src/combl.f

c     =====================================================
      subroutine combl()
c     =====================================================
c     
c     Create and initialize application specific common-blocks.
c
c     Copyright (C) 2003-2007 California Institute of Technology
c     Ralf Deiterding, ralf@amroc.net
c
      implicit double precision (a-h,o-z)
c
      include  "cuser.i"
      character *16 cwork
      parameter( lmechout = 13, lin=5, lblastout = 13 )
c
      open(unit=lin,status='old',form='formatted',file='init.dat')
      read (lin, *) xc0, yc0, zc0, rc0
      read (lin, *) tnts, ts
      read (lin, *) pamb, tamb
      close (lin)
c
      Wref    = 1.d0
      a2ref   = 1.d0
c     Air
      gamma  = 1.4d0  
      gamma1 = 0.4d0
      pi = 4.d0*atan(1.d0)
      Wk   = 29.08d-3/Wref
      cwork= 'AIR'
      RU = 0.83140000E+01/(Wref*a2ref)
      PA = 0.10132500E+06/a2ref
c
      open(unit=lmechout, status='unknown', form='formatted', 
     &     file='chem.dat')
      write (lmechout,400) RU
      write (lmechout,401) PA
      write (lmechout,402) gamma
      write (lmechout,403) cwork     
      write (lmechout,404) Wk        
      close (lmechout)
c
 400  format('RU       ',e16.8)
 401  format('PA       ',e16.8)
 402  format('Gamma    ',e16.8)
 403  format('Sp       ',a16)
 404  format('W        ',e16.8)
c
      rhoamb = pamb*Wk/(RU*tamb)
      rhos = rhoamb
c
c     # State in sphere
c
      es = 4520d3*tnts
      ps = pamb+(3.d0*gamma-3.d0)/(4.d0*pi)*es*rhos/rc0**3
c
c     # Ambient
c
      open(unit=lblastout,status='unknown', form='formatted',
     &     file='blastout.dat')
      write (lblastout,500) pamb
      write (lblastout,501) tamb
      write (lblastout,502) rhoamb
      write (lblastout,503) ps
      write (lblastout,504) ts
      write (lblastout,505) rhos
      close (lblastout)
c
 500  format('pamb     ',e16.8)
 501  format('tamb     ',e16.8)
 502  format('rhoamb   ',e16.8)
 503  format('ps       ',e16.8)
 504  format('ts       ',e16.8)
 505  format('rhos     ',e16.8)
c
      return
      end