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stellar.F
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PROGRAM STELLAR
include 'parm.h'
include 'var.h'
save
c
call start
imod=0
konv=0
mode=0
do i=1,100000
imod=imod+1
TIME=TIME+DTIME
MODEL=MODEL+1
C
C Store old values of time dependent variables in arrays with names
C beginning with a "v".
C
do j=1,N
do k=1,NG
vx(j,k)=x(j,k)
enddo
vhydrogen(j)=hydrogen(j)
vhelium4(j)=helium4(j)
vhelium3(j)=helium3(j)
vdeuterium(j)=deuterium(j)
vcarbon(j)=carbon(j)
vtrogen(j)=trogen(j)
voxygen(j)=oxygen(j)
enddo
C
C End of storing old values of time dependent variables
C
konv=max(0,konv-1)
call massflux(TIME,Zflux)
if(konv.gt.0. or. MODEL.eq.1) then
mode=999
else
mode=0
call gridmov
endif
dTAUmx= taufactor*taujk
c call elatim('NOPRINT')
call henyey(mode)
if(mode.ne.0) then
konv=konv+3
C
C NO CONVERGENCE IN HENYEY. TRY AGAIN
C
TIME=TIME-DTIME
MODEL=MODEL-1
imod=imod-1
if(abs(DTIME/DTMIN-1.).lt.0.01) stop 'NO CONVERGENCE'
DTIME=DTIME/float(konv)
DTIME=max(DTIME,DTMIN)
C
C Reset time dependent variables with old values.
C
do j=1,N
do k=1,NG
x(j,k)=vx(j,k)
enddo
hydrogen(j)=vhydrogen(j)
helium4(j)=vhelium4(j)
helium3(j)=vhelium3(j)
deuterium(j)=vdeuterium(j)
carbon(j)=vcarbon(j)
trogen(j)=vtrogen(j)
oxygen(j)=voxygen(j)
enddo
C
C End of variable reset.
C
else
C
C CONVERGENCE IN HENYEY. ADVANCE THE COMPOSITION
C
call compchange
call addmass
if(konv.lt.2) call addsub
call printm(imod)
C
C OPTIMIZE THE TIME STEP, TAKING INTO ACCOUNT THE PREVIOUS CONVERGENCE
C BEHAVIOR AND THE NET CHANGES.
C
if(CHANGE.lt.CHGMIN .and. ITER.lt.9 .and. konv.eq.0)
* DTIME=DTIME*1.1
if(CHANGE.gt.CHGMAX) DTIME=DTIME*0.8
if(CHANGE.gt.2.*CHGMAX) DTIME=DTIME*0.8
DTIME=max(DTIME,DTMIN)
DTIME=min(DTIME,DTMAX)
endif
if((nmod.gt.0 .and. imod.ge.nmod) .or. konv.ge.7) goto 99
enddo
99 call printm(-1)
stop
end
SUBROUTINE PRINTM(imod)
C+
C THE SUBROUTINE PRINTM WRITES OUT MODEL INFORMATION
C
C AUTHOR: H.W. YORKE 30-AUG-02 (JPL / CALTECH)
C-
include 'parm.h'
include 'var.h'
CHARACTER*1 CS(2)
DATA MODWRT/-1/
DATA CS/'*',' '/
save
C
if(mod(IMOD,NRIT).ne.0 .and. mod(MODEL,JRIT).ne.0) return
if(IMOD.gt.0) then
te4 = X(N,3)/7.125e-4/X(N,2)/X(N,2)
tee=sqrt(sqrt(te4))
c Znet=1.d0-hydrogen(1)-helium4(1)-helium3(1)-deuterium(1) &
c & -carbon(1)-trogen(1)-oxygen(1)
if(iter.lt.abs(itmax/2)) then
write (6,200) MODEL,TIME,DTIME,CHANGE, &
& X(1,1),X(1,4),X(N,2),X(N,3),tee,Zmass,Zflux
c & hydrogen(1),helium4(1),helium3(1),deuterium(1), &
c & carbon(1),oxygen(1),Znet, &
200 format(' MODEL:',i6,' TIME:',1p,D11.4,' DTIME:',D11.4, &
& ' NET CHANGE: ',D9.2, &
& /,' Pc,Tc,R,L,TE,M:',6D10.3,D11.3 &
& /,1x,83("*"))
c & /,' H,He4,He3,D,C,O:',0p,7f8.5,1p, &
else
write (6,300) MODEL,TIME,DTIME,CHANGE, &
& X(1,1),X(1,4),X(N,2),X(N,3),tee,Zmass,Zflux
300 format(' MODEL:',i6,' TIME:',1p,D11.4,' DTIME:',D11.4, &
& ' NET CHANGE: ',D9.2, &
& /,' XXXXXXXXXXXXXX:',6D10.3,D11.3 &
& /,1x,83("*"))
endif
endif
if((mod(IMOD,nrit).eq.0 .or. IMOD.lt.0) .and. MODEL.ne.MODWRT) &
& then
MODWRT=MODEL
if(deuterium(1).lt.1.d-37) then
if(helium3(1).lt.1.d-37) then
write (6,401) MODEL,TIME
else
write (6,301) MODEL,TIME
endif
else
write (6,201) MODEL,TIME
endif
401 format(/,' MODEL:',i6,' TIME:',1p,D12.4,/ &
& ' J dM M P R ', &
& ' L T RHO 1-BETA HYDR ', &
& ' HE4 C N O')
301 format(/,' MODEL:',i6,' TIME:',1p,D12.4,/ &
& ' J dM M P R ', &
& ' L T RHO 1-BETA HYDR ', &
& ' HE4 HE3 N O')
201 format(/,' MODEL:',i6,' TIME:',1p,D12.4,/ &
& ' J dM M P R ', &
& ' L T RHO 1-BETA HYDR ', &
& ' HE4 D N O')
do j=1,N
call invstate(91,x(j,1),x(j,4),hydrogen(j),helium4(j),Crad, &
& RHO,cP,alpha,beta,delta)
if(deuterium(1).lt.1.d-37) then
if(helium3(1).lt.1.d-37) then
write (6,202) J,CS(1+ICONVECT(j)),dM(j),zM(j), &
& (X(j,k),k=1,NG),rho,beta, &
& hydrogen(j),helium4(j),carbon(j), &
& trogen(j),oxygen(j)
else
write (6,202) J,CS(1+ICONVECT(j)),dM(J),zM(J), &
& (X(j,k),k=1,NG),rho,beta, &
& hydrogen(j),helium4(j),helium3(j), &
& trogen(j),oxygen(j)
endif
else
write (6,202) J,CS(1+ICONVECT(j)),dM(J),zM(J), &
& (X(j,k),k=1,NG),rho,beta, &
& hydrogen(j),helium4(j),deuterium(j), &
& trogen(j),oxygen(j)
endif
C202 format(I5,1x,a1,0p,F9.6,1p,12D9.2)
202 format(I5,1x,a1,1p,D9.2,D13.6,D10.3,D9.2,D13.5,2D10.3,6D9.2)
enddo
if(NATM.gt.0 .and. IMOD.ne.0) then
call atmos(Tatm,RHOatm,Ratm,Patm,X(N,2),X(N,3),NATM)
else
call atmos(Tatm,RHOatm,Ratm,Patm,X(N,2),X(N,3),0)
endif
if(MODEL.ne.0) then
write (JUNIT) MODEL,N,TIME,dTIME,taujk, &
& ((x(j,k),k=1,4),dM(j), &
& hydrogen(j),helium3(j),helium4(j),deuterium(j), &
& carbon(j),trogen(j),oxygen(j), &
& j=1,N)
c backspace JUNIT
c read (JUNIT)
NREC=NREC+1
write (6,204) MODEL,TIME,NREC,JUNIT
204 format(' MODEL:',i6,' TIME:',1p,D12.4,' STORED AS RECORD', &
& i5,' ON UNIT',i3)
endif
endif
return
end
SUBROUTINE START
C+
C THE SUBROUTINE START PREPARES FOR THE FIRST RUNNUNG OF HYDRO.
C
C AUTHOR: H.W. YORKE 30-JAN-02 (JPL / CALTECH)
C-
include 'parm.h'
include 'var.h'
character*50 SFILE,OFILE
character*1 why(3)
dimension ZH(14)
dimension dens(MJ),temp(MJ), xl(MJ), r(MJ) ,pres(MJ)
equivalence (X(1,1),pres) , (X(1,4),temp)
equivalence (X(1,2),r) , (X(1,3),xl)
COMMON/ABUND/XBA(14),H1(14),AH(14)
DATA ZH /1.0081451,4.003874,12.0038156,23.,24.32, &
& 26.97,28.06,32.07,39.102,40.08,55.85,14.0075257,16.,19.99/
DATA RSUN/6.96d10/
save
c
do i=1,14
ah(i)=zh(i)
enddo
c
call comrd
READ (5,200) IUNIT,SFILE
c WRITE(6,200) IUNIT,SFILE
call comrd
READ (5,200) JUNIT,OFILE
c WRITE(6,200) JUNIT,OFILE
c
if(IUNIT.eq.1) then
open(unit=IUNIT,file=SFILE, form='formatted' , status='old' )
else
open(unit=IUNIT,file=SFILE, form='unformatted' , status='old' )
endif
if(IUNIT.ne.JUNIT) &
& open(unit=JUNIT,file=OFILE, form='unformatted' , &
& status='unknown' )
C
200 FORMAT(20X,i3,1X,a)
201 FORMAT(5(6X,I6))
202 FORMAT(1P,4(6X,D9.2))
203 FORMAT(4(6X,D9.2))
C
call comrd
READ (5,201) NREC,NMOD,NRIT,ITMIN,ITMAX
c WRITE(6,201) NREC,NMOD,NRIT,ITMIN,ITMAX
call comrd
READ (5,201) JADD,JSUB,NATM
c WRITE(6,201) JADD,JSUB,NATM
call comrd
READ (5,203) Atmx,Atmn,dTAUmx,RLH
c WRITE(6,202) Atmx,Atmn,dTAUmx,RLH
taufactor=dTAUmx
call comrd
READ (5,203) dLmx,dLmn,dXmx,dXmn
c WRITE(6,202) dLmx,dLmn,dXmx,dXmn
call comrd
READ (5,203) dPmx,dPmn,Crad,Cwrk
c WRITE(6,202) dPmx,dPmn,Crad,Cwrk
call comrd
READ (5,203) dZmax,dZmin,dZdt
dZmax=dZmax*1.00001
c WRITE(6,202) dZmax,dZmin,dZdt
call comrd
READ (5,203) EPS
c WRITE(6,202) EPS
call comrd
READ (5,203) SMIN
c WRITE(6,202) SMIN
call comrd
READ (5,203) SMAX
c WRITE(6,202) SMAX
C
call comrd
READ (5,203) DTIME,FACTIM,DTMIN,DTMAX
c WRITE(6,202) DTIME,FACTIM,DTMIN,DTMAX
call comrd
READ (5,203) CHGMIN,CHGMAX
c WRITE(6,202) CHGMIN,CHGMAX
call comrd
READ (5,*) (H1(J), J = 1,4)
call comrd
READ (5,*) (H1(J), J = 5,8)
call comrd
READ (5,*) (H1(J), J = 9,12)
call comrd
READ (5,*) (H1(J), J = 13,14)
call comrd
NG=MH
JRIT = max(1,NRIT/10)
C
XH2=H1(2)
H1(2)=abs(H1(2))
SUM = 1.
DO J = 1,14
SUM = SUM - H1(J)
END DO
XX=H1(1)
YY=SUM
C H1(2) is temporarily used as the primordial deuterium abundance and
C then replaced by the initial helium abundance.
H1(2)=YY
DO J = 1,14
XBA(J) = H1(J) / AH(J)
END DO
ZZ= 1. - XX - YY
IF(IUNIT.EQ.1) THEN
NREC=0
MODEL=0
C SETUP STARTING MODEL
do j=1,MJ
read(IUNIT,*,end=34) zM(j),r(j),temp(j),xl(j),dens(j)
if(r(j).le.0.d0) goto 35
enddo
J=MJ+1
GOTO 35
34 backspace(IUNIT)
35 N=min(J-1,MJ)
close(IUNIT)
Zmass=zM(N+1)
C**************
amu = 2.*XX + 0.75*YY + 0.57*ZZ
Rglog=log10(83145100.d0*amu)
do i = 1,N
r(i) = RSUN*r(i)
tlog = log10(temp(i))
hydrogen(i) = XX
helium4(i) = YY
helium3(i) = 1.d-5
deuterium(i)=abs(XH2)
carbon(i)=H1(3)
trogen(i)=H1(12)
oxygen(i)=H1(13)
denlog = log10(dens(i))
xl(i) = xl(i)*3.85d33
Plog = Rglog + denlog + Tlog
pres(i)=10.d0**Plog
zM(i)=zM(i)*zMass
end do
dM (1)=zM(1)
do i=2,N
dM (i)=zM(i)-zM(i-1)
enddo
TIME=0.
taujk=1.D11
dTAUmx=taujk*taufactor
call printm(MODEL)
ELSE
if(NREC.lt.0) NREC=99999
nn=max(1,NREC)
do imod=1,nn
read(IUNIT,end=301) MODEL,N,TIME,dTIM,taujk, &
& ((x(j,k),k=1,4),dM(j), &
& hydrogen(j),helium3(j),helium4(j),deuterium(j), &
& carbon(j),trogen(j),oxygen(j), &
& j=1,N)
enddo
IMOD=NREC+1
goto 302
301 backspace(IUNIT)
302 NREC=IMOD-1
zM(1)=dM(1)
do i=2,N
zM(i)=zM(i-1)+dM(i)
enddo
if(NREC.eq.0) then
TIME=0.d0
MODEL=0
endif
write(6,209) NREC,MODEL,N,TIME,dTIM
209 format(' RECORD',i4,' MODEL:',i6,' N:',i4,' TIME:', &
& 1p,D11.4,' DTIME:',D11.4)
if(JUNIT.ne.IUNIT) NREC=0
if(DTIME.lt.0.0d0) DTIME=dTIM
write(6,*) '... continuing calculations with MODEL=',MODEL
Zmass=zM(N)
write(*,*) 'Zmass=', Zmass
if(Jadd.gt.0) then
why(1)='I'
call add(Jadd,why)
endif
if(Jsub.gt.0) call sub(Jsub)
if(FACTIM.lt.0.d0) TIME=0.
ENDIF
RETURN
END
subroutine comrd
character*1 line(1)
character*80 lin
equivalence (lin,line)
save
c
1 read (5,203,end=999) lin
if(line(1).eq.' ') then
write(6,203) lin
backspace 5
return
else
if(line(1).ne.'c' .and. line(1).ne.'C') &
& write(6,203) lin
c202 format(1x,a)
endif
goto 1
999 write(6,203) 'COMRD: END OF INPUT DATA'
203 format(a)
return
end