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fsterl

  1. C FSTERL    SOURCE    BECC      11/05/26    21:15:26     6981
  2.       SUBROUTINE FSTERL(
  3.      &     PC, GAM,
  4.      &     P, RHO_L, P_L, U_L,
  5.      &     U, RHO, D,
  6.      &     LOGDEB, LOGAN)
  7. *
  8. *************************************************************************
  9. *
  10. * project           :  CAST3M, EUROPLEXUS...
  11. *
  12. * name              :  fsterl
  13. *
  14. * description       :  euler equations for a mixture of stiffened gases
  15. *                      flux in the non-reactive case.
  16. *
  17. *                      left entropy-respecing curve as function of p
  18. *
  19. * language          :  fortran 77
  20. *
  21. * author            :  a. beccantini den/dm2s/sfme/ltmf
  22. *
  23. *************************************************************************
  24. *
  25. * called by         :
  26. *
  27. *
  28. *************************************************************************
  29. *
  30. ***** input
  31. *
  32. *     pc, gam         = properties of the gas
  33. *
  34. *     p               = pressure in the right side of the left
  35. *                       entropy respecing curve
  36. *
  37. *     rho_l, p_l, u_l
  38. *                     = density, pressure, velocity on the left
  39. *
  40. *     logdeb          = debugging ?
  41. *
  42. ***** output
  43. *
  44. *     u, rho          = velocity and density in the right side of the
  45. *                       entropy respecing curve
  46. *
  47. *     d               = wave speed
  48. *
  49. *     logan           = anomaly ?
  50. *
  51. *************************************************************************
  52. *
  53. *     26/11/2009      created
  54. *     25/05/2011      evolution in CAST3M
  55. *
  56. *************************************************************************
  57. *
  58. * n.b.: all variables are declared
  59. *
  60. C      IMPLICIT NONE
  61.       IMPLICIT INTEGER(I-N)
  62.       REAL*8
  63.      &     PC, GAM,
  64.      &     P, RHO_L, P_L, U_L,
  65.      &     U, D
  66. *
  67.       REAL*8 RHO
  68. *
  69.       LOGICAL LOGDEB, LOGAN
  70. *
  71.       IF (P .LE. P_L) THEN
  72.          CALL FSTRAL(PC, GAM, P, RHO_L, P_L, U_L,
  73.      &        U, RHO, D,
  74.      &        LOGDEB, LOGAN)
  75.       ELSE
  76.          CALL FSTSHL(PC, GAM, P, RHO_L, P_L, U_L,
  77.      &        U, RHO, D,
  78.      &        LOGDEB, LOGAN)
  79.       ENDIF
  80. *
  81.       IF (LOGAN) THEN
  82.          WRITE(*,*) 'SUBROUTINE FSTERL.F'
  83.          WRITE(*,*) 'ANOMALY DETECTED.'
  84.          GOTO 9999
  85.       ENDIF
  86. *
  87.  9999 RETURN
  88.       END
  89.  
  90.  

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