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*DECK B1HOM
SUBROUTINE B1HOM (IPMACR,LEAKSW,NUNKNO,OPTION,TYPE,NGRO,IPAS,NBM,
1 NFISSI,VOL,MAT,KEYFLX,FLUX,REFKEF,IMPX,DHOM,
2 GAMMA,ALAM1,INORM,B2)
*
*-----------------------------------------------------------------------
*
*Purpose:
* Homogenization of the unit cell and solution of the B-n equations in
* fundamental mode condition.
*
*Copyright:
* Copyright (C) 2002 Ecole Polytechnique de Montreal
* This library is free software; you can redistribute it and/or
* modify it under the terms of the GNU Lesser General Public
* License as published by the Free Software Foundation; either
* version 2.1 of the License, or (at your option) any later version
*
*Author(s): A. Hebert
*
*Parameters: input
* IPMACR pointer to the macrolib LCM object (L_MACROLIB signature).
* LEAKSW leakage flag (=.TRUE. if leakage is present on the outer
* surface).
* NUNKNO number of flux/current unknowns.
* OPTION type of leakage coefficients; can be 'LKRD' (recover leakage
* coefficients in Macrolib), 'RHS' (recover leakage coefficients
* in RHS flux object), 'B0' (B-0), 'P0' (P-0), 'B1' (B-1),
* 'P1' (P-1), 'B0TR' (B-0 with transport correction) or 'P0TR'
* (P-0 with transport correction).
* TYPE type of buckling iteration.
* Can be 'DIFF' (do a B-0 calculation of DHOM(NGRO) and exit);
* 'K' (do a B-n calculation with keff search);
* 'B' (do a B-n calculation with buckling search);
* 'L' (do a B-n calculation with buckling search
* for a problem with few or no fission).
* NGRO number of groups.
* IPAS number of volumes.
* NBM number of mixtures.
* NFISSI maximum number of fission spectrum assigned to a mixture.
* VOL volumes.
* MAT mixture number of each volume.
* KEYFLX position of each flux in the unknown vector.
* FLUX direct unknown vector.
* REFKEF target K-effective for type B or type L calculations.
* IMPX print flag.
* INORM type of leakage model:
* =1: Diffon; =2: Ecco; =3: Tibere.
* B2 original direction dependant buckling.
*
*Parameters: output
* DHOM homogeneous leakage coefficients.
* GAMMA gamma factors.
* ALAM1 effective multiplication factor.
*
*-----------------------------------------------------------------------
*
USE GANLIB
*----
* SUBROUTINE ARGUMENTS
*----
CHARACTER*4 OPTION,TYPE
TYPE(C_PTR) IPMACR
LOGICAL LEAKSW
INTEGER NUNKNO,NGRO,IPAS,NBM,NFISSI,MAT(IPAS),KEYFLX(IPAS),IMPX,
1 INORM
REAL VOL(IPAS),FLUX(NUNKNO,NGRO,2),DHOM(NGRO),GAMMA(NGRO),B2(4)
DOUBLE PRECISION REFKEF,ALAM1
*----
* LOCAL VARIABLES
*----
INTEGER IDEL(2)
INTEGER, ALLOCATABLE, DIMENSION(:) :: IJJ0,IJJ1,NJJ0,NJJ1
REAL, ALLOCATABLE, DIMENSION(:) :: ST,SA,SFNU,XHI,SCAT0,SCAT1,FL2
DOUBLE PRECISION B2HOM,CAET,A2,CURN,B2T(3)
DOUBLE PRECISION, ALLOCATABLE, DIMENSION(:) :: PHI
*----
* SCRATCH STORAGE ALLOCATION
*----
ALLOCATE(PHI(NGRO))
*
IF(LEAKSW) CALL XABORT('B1HOM: FUNDAMENTAL MODE EXPECTED.')
IAN=0
IF ((OPTION.EQ.'B0').OR.(OPTION.EQ.'P0')) THEN
IAN=0
ELSE IF ((OPTION.EQ.'B1').OR.(OPTION.EQ.'P1')) THEN
IAN=1
ELSE IF ((OPTION.EQ.'B0TR').OR.(OPTION.EQ.'P0TR')) THEN
IAN=-1
ENDIF
ALLOCATE(IJJ0(NGRO),IJJ1(NGRO),NJJ0(NGRO),NJJ1(NGRO))
CALL B1HXS1(IPMACR,NGRO,NBM,IAN,NFISSI,IJJ0,IJJ1,NJJ0,NJJ1,IDEL)
*
ALLOCATE(ST(NGRO),SA(NGRO),SFNU(NGRO),XHI(NGRO),SCAT0(IDEL(1)),
1 SCAT1(IDEL(2)))
IF(INORM.EQ.2) THEN
* ECCO-TYPE ISOTROPIC STREAMING.
CALL B1HXS3(NUNKNO,IPMACR,IPAS,NGRO,NBM,IAN,VOL,MAT,KEYFLX,
1 FLUX(1,1,1),IJJ0,IJJ1,NJJ0,NJJ1,IDEL,PHI,ST,SCAT0,SCAT1,NGROIN)
ELSE IF(INORM.EQ.3) THEN
* TIBERE-TYPE ANISOTROPIC STREAMING.
IF(B2(4).EQ.0.0) THEN
B2T(1)=0.33333333333333D0
B2T(2)=B2T(1)
B2T(3)=B2T(1)
ELSE
B2T(1)=DBLE(B2(1))/DBLE(B2(4))
B2T(2)=DBLE(B2(2))/DBLE(B2(4))
B2T(3)=DBLE(B2(3))/DBLE(B2(4))
ENDIF
ALLOCATE(FL2(2*NUNKNO*NGRO))
IOF=0
DO 30 IGRO=1,NGRO
DO 10 IUNK=1,NUNKNO/4
IOF=IOF+1
FL2(IOF)=FLUX(IUNK,IGRO,1)
10 CONTINUE
DO 20 IUNK=1,NUNKNO/4
IOF=IOF+1
CURN=0.0D0
DO 15 IDIR=1,3
CURN=CURN+B2T(IDIR)*FLUX(NUNKNO/4*IDIR+IUNK,IGRO,1)
15 CONTINUE
FL2(IOF)=REAL(CURN)
20 CONTINUE
30 CONTINUE
CALL B1HXS3(NUNKNO/2,IPMACR,IPAS,NGRO,NBM,IAN,VOL,MAT,KEYFLX,
1 FL2(1),IJJ0,IJJ1,NJJ0,NJJ1,IDEL,PHI,ST,SCAT0,SCAT1,NGROIN)
DEALLOCATE(FL2)
ENDIF
CALL B1HXS2(NUNKNO,IPMACR,IPAS,NGRO,NBM,IAN,NFISSI,VOL,MAT,
1 KEYFLX,FLUX,LFISSI,IJJ0,IJJ1,NJJ0,NJJ1,IDEL,PHI,SA,ST,SFNU,
2 XHI,SCAT0,SCAT1,NGROIN,INORM)
*
B2OLD=B2(4)
B2HOM=DBLE(B2OLD)
CALL B1DIF(OPTION,TYPE,NGRO,ST,SFNU,XHI,IJJ0,IJJ1,NJJ0,NJJ1,SCAT0,
1 SCAT1,REFKEF,LFISSI,IMPX,DHOM,GAMMA,B2HOM,ALAM1,CAET,A2,PHI)
B2(4)=REAL(B2HOM)
*
IF (TYPE.EQ.'DIFF') GO TO 130
*----
* CORRECT THE SOURCES WITH THE NEW BUCKLING
*----
DO 35 L=1,NUNKNO
DO 34 I=1,NGRO
FLUX(L,I,2)=FLUX(L,I,2)+(B2(4)-B2OLD)*DHOM(I)*FLUX(L,I,1)
34 CONTINUE
35 CONTINUE
*----
* NORMALIZE THE DRAGON FLUX USING THE FUNDAMENTAL B1 SOLUTION
*----
IF(INORM.EQ.1) THEN
DO 60 I=1,NGRO
CAET=0.0D0
DO 40 L=1,IPAS
CAET=CAET+VOL(L)*FLUX(KEYFLX(L),I,1)
40 CONTINUE
CAET=PHI(I)/CAET
DO 50 L=1,NUNKNO
FLUX(L,I,:2)=FLUX(L,I,:2)*REAL(CAET)
50 CONTINUE
60 CONTINUE
ELSE IF(INORM.EQ.2) THEN
DO 90 I=1,NGRO
CAET=0.0D0
CURN=0.0D0
DO 70 L=1,IPAS
CAET=CAET+VOL(L)*FLUX(KEYFLX(L),I,1)
CURN=CURN+VOL(L)*FLUX(KEYFLX(L)+NUNKNO/2,I,1)
70 CONTINUE
CAET=PHI(I)/CAET
CURN=PHI(I)*DHOM(I)/CURN
DO 80 L=1,NUNKNO/2
FLUX(L,I,:2)=FLUX(L,I,:2)*REAL(CAET)
FLUX(L+NUNKNO/2,I,:2)=FLUX(L+NUNKNO/2,I,:2)*REAL(CURN)
80 CONTINUE
90 CONTINUE
ELSE IF(INORM.EQ.3) THEN
IF(B2(4).EQ.0.0.OR.
> (B2(1).EQ.0.0.AND.B2(2).EQ.0.0.AND.B2(3).EQ.0.0)) THEN
B2T(1)=0.33333333333333D0
B2T(2)=B2T(1)
B2T(3)=B2T(1)
ELSE
B2HOM=1.0D0/(DBLE(B2(1))+DBLE(B2(2))+DBLE(B2(3)))
B2T(1)=B2HOM*DBLE(B2(1))
B2T(2)=B2HOM*DBLE(B2(2))
B2T(3)=B2HOM*DBLE(B2(3))
ENDIF
DO 120 I=1,NGRO
CAET=0.0D0
CURN=0.0D0
DO 100 L=1,IPAS
CAET=CAET+VOL(L)*FLUX(KEYFLX(L),I,1)
CURN=CURN+B2T(1)*FLUX(KEYFLX(L)+NUNKNO/4,I,1)*VOL(L)
> +B2T(2)*FLUX(KEYFLX(L)+NUNKNO/2,I,1)*VOL(L)
> +B2T(3)*FLUX(KEYFLX(L)+3*NUNKNO/4,I,1)*VOL(L)
100 CONTINUE
CAET=PHI(I)/CAET
CURN=PHI(I)*DHOM(I)/CURN
DO 110 L=1,IPAS
FLUX(KEYFLX(L),I,:2)=FLUX(KEYFLX(L),I,:2)*REAL(CAET)
FLUX(KEYFLX(L)+NUNKNO/4,I,:2)=
1 FLUX(KEYFLX(L)+NUNKNO/4,I,:2)*REAL(CURN)
FLUX(KEYFLX(L)+NUNKNO/2,I,:2)=
1 FLUX(KEYFLX(L)+NUNKNO/2,I,:2)*REAL(CURN)
FLUX(KEYFLX(L)+3*NUNKNO/4,I,:2)=
1 FLUX(KEYFLX(L)+3*NUNKNO/4,I,:2)*REAL(CURN)
110 CONTINUE
120 CONTINUE
ENDIF
*
130 DEALLOCATE(SCAT1,SCAT0,XHI,SFNU,SA,ST)
DEALLOCATE(NJJ1,NJJ0,IJJ1,IJJ0)
*----
* SCRATCH STORAGE DEALLOCATION
*----
DEALLOCATE(PHI)
RETURN
END
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