User: cott Date: 2011/02/06 11:36 PM

Modified: /trunk/src/nuc_eos/ nuc_eos.F90

Log: * update nuc_eos with some changes in the low-density regime.

File Changes:

Directory: /trunk/src/nuc_eos/ ==============================

File [modified]: nuc_eos.F90 Delta lines: +32 -13 =================================================================== --- trunk/src/nuc_eos/nuc_eos.F90 2011-02-05 17:07:51 UTC (rev 36) +++ trunk/src/nuc_eos/nuc_eos.F90 2011-02-07 05:36:36 UTC (rev 37) @@ -160,6 +160,25 @@

end subroutine nuc_eos_full

+subroutine nuc_poly_eos(xrho,xenr,xprs,xcs2,xdpderho,xdpdrhoe,keytemp) + + implicit none + real*8 xrho,xenr,xprs,xcs2,xdpderho,xdpdrhoe + real*8,parameter:: polyK1 = 5.0d14 + real*8,parameter :: polyGamma = 1.33333333333333d0 + integer keytemp + + xprs=polyK1*xrho**(polyGamma) + xenr=xprs/xrho/(polyGamma-1.d0) + xcs2=polyGamma*xprs/xrho + xdpderho=0.0d0 + xdpdrhoe=0.0d0 + + xenr=max(8.0d18,xenr) + xenr=min(3.0d20,xenr) + +end subroutine nuc_poly_eos + subroutine nuc_low_eos(xrho,xenr,xprs,xcs2,xdpderho,xdpdrhoe,keytemp)

implicit none @@ -212,9 +231,9 @@ call CCTK_WARN (0, "nuc_eos: rho > rhomax") endif

- if(xrho.lt.eos_rhomin*1.2d0) then - call nuc_low_eos(xrho,xenr,xprs,xcs2,xdpderho,xdpdrhoe,keytemp) - xent = 4.0d0 + if(xrho.lt.eos_rhomin*1.126d0) then + call nuc_poly_eos(xrho,xenr,xprs,xcs2,xdpderho,xdpdrhoe,keytemp) + xent = 0.0d0 return endif

@@ -234,8 +253,8 @@ endif

if(xtemp.lt.eos_tempmin) then - call nuc_low_eos(xrho,xenr,xprs,xcs2,xdpderho,xdpdrhoe,keytemp) - xent = 4.0d0 + call nuc_poly_eos(xrho,xenr,xprs,xcs2,xdpderho,xdpdrhoe,keytemp) + xent = 0.0d0 return endif endif @@ -335,8 +354,8 @@ call CCTK_WARN (0, "nuc_eos: rho > rhomax") endif

- if(xrho.lt.eos_rhomin*1.2d0) then - call nuc_low_eos(xrho,xenr,xprs,xcs2,xdpderho,xdpdrhoe,keytemp) + if(xrho.lt.eos_rhomin*1.126d0) then + call nuc_poly_eos(xrho,xenr,xprs,xcs2,xdpderho,xdpdrhoe,keytemp) return endif

@@ -354,9 +373,9 @@ if(xtemp.gt.eos_tempmax) then call CCTK_WARN (0, "nuc_eos: temp > tempmax") endif - + if(xtemp.lt.eos_tempmin) then - call nuc_low_eos(xrho,xenr,xprs,xcs2,xdpderho,xdpdrhoe,keytemp) + call nuc_poly_eos(xrho,xenr,xprs,xcs2,xdpderho,xdpdrhoe,keytemp) return endif endif @@ -414,8 +433,8 @@ call CCTK_WARN (0, "nuc_eos: rho > rhomax") endif

- if(xrho.lt.eos_rhomin*1.2d0) then - call nuc_low_eos(xrho,xenr,xprs,xcs2,xdpderho,xdpdrhoe,keytemp) + if(xrho.lt.eos_rhomin*1.126d0) then + call nuc_poly_eos(xrho,xenr,xprs,xcs2,xdpderho,xdpdrhoe,keytemp) return endif

@@ -433,9 +452,9 @@ if(xtemp.gt.eos_tempmax) then call CCTK_WARN (0, "nuc_eos: temp > tempmax") endif - + if(xtemp.lt.eos_tempmin) then - call nuc_low_eos(xrho,xenr,xprs,xcs2,xdpderho,xdpdrhoe,keytemp) + call nuc_poly_eos(xrho,xenr,xprs,xcs2,xdpderho,xdpdrhoe,keytemp) return endif endif