hm_read_eos_stiffened_gas.F

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!||====================================================================
!||    hm_read_eos_stiffened_gas   ../starter/source/materials/eos/hm_read_eos_stiffened_gas.F
!||--- called by ------------------------------------------------------
!||    hm_read_eos                 ../starter/source/materials/eos/hm_read_eos.F
!||--- calls      -----------------------------------------------------
!||    ancmsg                      ../starter/source/output/message/message.F
!||    hm_get_floatv               ../starter/source/devtools/hm_reader/hm_get_floatv.F
!||    hm_option_is_encrypted      ../starter/source/devtools/hm_reader/hm_option_is_encrypted.F
!||--- uses       -----------------------------------------------------
!||    message_mod                 ../starter/share/message_module/message_mod.F
!||    submodel_mod                ../starter/share/modules1/submodel_mod.f
!||====================================================================
      SUBROUTINE hm_read_eos_stiffened_gas(IOUT,PM,UNITAB,IUNIT,LSUBMODEL,IMIDEOS)
C-----------------------------------------------
C   M o d u l e s
C-----------------------------------------------
      USE unitab_mod
      USE submodel_mod
      USE message_mod      
C-----------------------------------------------
C   D e s c r i p t i o n
C-----------------------------------------------
C reading parameters for
C   LINEAR EQUATION OF STATE
C-----------------------------------------------
C   C o m m e n t s
C-----------------------------------------------
C  RHOI = PM(89)   -> provided by /MAT
C  RHOR = PM(01)   -> provided by /MAT (can be erased by EOS if present : obsolete)
C  => MU0 = RHO/RHOR-1.
C  PM(31) = P(MU0,E0) -> will be used to initialize diagonal of stress tensor SIG(1:3,*)
C-----------------------------------------------
C   I m p l i c i t   T y p e s
C-----------------------------------------------
#include      "implicit_f.inc"
C-----------------------------------------------
C   D u m m y   A r g u m e n t s
C-----------------------------------------------
      TYPE (UNIT_TYPE_),INTENT(IN) ::UNITAB 
      INTEGER IIN,IOUT,IUNIT
      my_real pm(npropm)
      TYPE(submodel_data), DIMENSION(NSUBMOD), INTENT(IN) :: LSUBMODEL
      INTEGER,INTENT(IN) :: IMIDEOS
C-----------------------------------------------
C   C o m m o n   B l o c k s
C-----------------------------------------------
#include      "param_c.inc"
C-----------------------------------------------
C   L o c a l   V a r i a b l e s
C-----------------------------------------------
      my_real  gamma, p0, e0, psh, rho0,fac_l,fac_t,fac_m,fac_c,pstar,rhoi,rhor,mu0,pp,df,ssp0,g0,dpdmu
      LOGICAL :: IS_ENCRYPTED, IS_AVAILABLE, IS_AVAILABLE_RHO0     
C-----------------------------------------------
C   S o u r c e   L i n e s
C-----------------------------------------------
      is_encrypted = .false.
      is_available = .false.
      is_available_rho0 = .false.
 
      CALL hm_option_is_encrypted(is_encrypted)
 
      CALL hm_get_floatv('Gamma', gamma, is_available,lsubmodel,unitab)
      CALL hm_get_floatv('LAW5_P0', p0, is_available,lsubmodel,unitab)
      CALL hm_get_floatv('LAW5_PSH', psh, is_available,lsubmodel,unitab)
      CALL hm_get_floatv('P_star', pstar, is_available,lsubmodel,unitab)
      CALL hm_get_floatv('Refer_Rho', rho0, is_available_rho0,lsubmodel,unitab)
 
      rhor = pm(1)
      rhoi = pm(89)
 
      IF(rho0 > zero) THEN
        rhor = rho0
        pm(1)= rho0 
      ELSE
        rho0=rhor                   
      ENDIF
      
      IF(gamma /= one)THEN
        e0=(p0+gamma*pstar)/(gamma-one)
      ELSE
        e0 = zero ! error managed below
      ENDIf
      
      !ERREURS :
      ! GAMMA <=0
      
      IF(gamma <= one)THEN
         CALL ancmsg(msgid=67,msgtype=msgerror,anmode=aninfo,i1=imideos,c1='/EOS/STIFF-GAS',c2='GAMMA MUST BE GREATER THAN 1.0')
      ENDIF
 
      
      pm(34)=gamma
      pm(32)=p0
      pm(88)=psh
      pm(23)=e0
      pm(35)=pstar
      
      !P0
      IF(rhoi == zero)THEN
        mu0 = zero ! error 683 already displayed
      ELSE
        IF(rhor /= zero)THEN
          mu0 = rhoi/rhor-one
        ELSE
          mu0 = zero ! error 683 already displayed
        ENDIF
      ENDIF
      
      IF(rhoi /= zero)THEN
        df = rhor/rhoi
      ELSE
        df = zero
      ENDIF
 
      pp = -gamma*pstar-psh + (gamma-one)*(one+mu0)*e0
      pm(31)=p0-psh
      IF(pm(79)==zero)pm(79)=three100
      pm(104)=p0-psh
      
      !SSP0
      ssp0 = zero 
      g0 = pm(22)
      rhoi = pm(89)
      dpdmu =  (gamma-one) *e0+(gamma-one)*(one+mu0)*df*df*(pp+psh)
      dpdmu=max(zero,dpdmu)
      IF(rhor > zero) ssp0 = sqrt((dpdmu + two_third*g0)/rhor) 
      pm(27)=ssp0
      
      WRITE(iout,1000)
 
      IF(is_encrypted)THEN
        WRITE(iout,'(5X,A,//)')'CONFIDENTIAL DATA'
      ELSE
        WRITE(iout,1500)gamma,p0,psh,pstar,e0
        IF(is_available_rho0)WRITE(iout,1501)pm(1)
      ENDIF
 
      RETURN
 1000 FORMAT(
     & 5x,'  STIFFENED GAS EOS     ',/,
     & 5x,'  -----------------     ',/)
 1500 FORMAT(
     & 5x,'GAMMA . . . . . . . . . . . . . . . . . .=',1pg20.13/,
     & 5x,'P0. . . . . . . . . . . . . . . . . . . .=',1pg20.13/,
     & 5x,'PSH . . . . . . . . . . . . . . . . . . .=',1pg20.13/,
     & 5x,'PSTAR . . . . . . . . . . . . . . . . . .=',1pg20.13/,
     & 5x,'COMPUTED E0 . . . . . . . . . . . . . . .=',1pg20.13)
 1501 FORMAT(     
     & 5x,'eos reference density . . . . . . . . . .=',1PG20.13)        
 
      RETURN
      END