1 files changed, 111 insertions, 0 deletions
diff --git a/Trivac/src/FLDBIV.f b/Trivac/src/FLDBIV.f
new file mode 100755
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+++ b/Trivac/src/FLDBIV.f
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+*DECK FLDBIV
+      SUBROUTINE FLDBIV(IPTRK,NEL,NUN,EVECT,MAT,VOL,IDL)
+*
+*-----------------------------------------------------------------------
+*
+*Purpose:
+* Calculation of the averaged flux in BIVAC.
+*
+*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
+* IPTRK   L_TRACK pointer to the BIVAC tracking information.
+* NEL     total number of finite elements.
+* NUN     total number of unknown per energy group.
+* EVECT   variational coefficients of the flux. The information is
+*         contained in position EVECT(1) to EVECT(LL4) where LL4 is
+*         the order of the system matrices.
+* MAT     mixture index assigned to each element.
+* VOL     volume of each element.
+* IDL     position of the average flux component associated with each
+*         volume.
+*
+*Parameters: output
+* EVECT   averaged fluxes. The information is contained in positions
+*         EVECT(IDL(I)).
+*
+*-----------------------------------------------------------------------
+*
+      USE GANLIB
+*----
+*  SUBROUTINE ARGUMENTS
+*----
+      TYPE(C_PTR) IPTRK
+      INTEGER NEL,NUN,MAT(NEL),IDL(NEL)
+      REAL EVECT(NUN),VOL(NEL)
+*----
+*  LOCAL VARIABLES
+*----
+      PARAMETER (NSTATE=40)
+      LOGICAL CYLIND
+      INTEGER ITP(NSTATE)
+      INTEGER, DIMENSION(:), ALLOCATABLE :: KN
+      REAL, DIMENSION(:), ALLOCATABLE :: XX,DD,T,TS,QFR
+      REAL, DIMENSION(:,:), ALLOCATABLE :: RH,RT
+*----
+*  RECOVER BIVAC SPECIFIC TRACKING INFORMATION
+*----
+      CALL LCMGET(IPTRK,'STATE-VECTOR',ITP)
+      ITYPE=ITP(6)
+      CYLIND=(ITYPE.EQ.3).OR.(ITYPE.EQ.6)
+      IELEM=ITP(8)
+      ICOL=ITP(9)
+      ISPLH=ITP(10)
+      LL4=ITP(11)
+      LX=ITP(12)
+      LY=ITP(13)
+      CALL LCMLEN(IPTRK,'KN',MAXKN,ITYLCM)
+      ALLOCATE(KN(MAXKN))
+      CALL LCMGET(IPTRK,'KN',KN)
+*
+      IF((IELEM.LT.0).AND.(ITYPE.NE.8)) THEN
+*        LAGRANGIAN FINITE ELEMENTS.
+         ALLOCATE(XX(LX*LY),DD(LX*LY))
+         CALL LCMGET(IPTRK,'XX',XX)
+         CALL LCMGET(IPTRK,'DD',DD)
+         CALL LCMSIX(IPTRK,'BIVCOL',1)
+         CALL LCMLEN(IPTRK,'T',LC,ITYLCM)
+         ALLOCATE(T(LC),TS(LC))
+         CALL LCMGET(IPTRK,'T',T)
+         CALL LCMGET(IPTRK,'TS',TS)
+         CALL LCMSIX(IPTRK,' ',2)
+         CALL FLDBN2(NEL,LL4,-IELEM,CYLIND,EVECT,XX,DD,MAT,VOL,IDL,KN,
+     1   LC,T,TS)
+         DEALLOCATE(TS,T,DD,XX)
+      ELSE IF((IELEM.LT.0).AND.(ITYPE.EQ.8)) THEN
+*        MESH CORNER FINITE DIFFERENCES IN HEXAGONAL GEOMETRY.
+         CALL LCMSIX(IPTRK,'BIVCOL',1)
+         ALLOCATE(RH(6,6),RT(3,3))
+         CALL LCMGET(IPTRK,'RH',RH)
+         CALL LCMGET(IPTRK,'RT',RT)
+         CALL LCMSIX(IPTRK,' ',2)
+         IF(ISPLH.EQ.1) THEN
+            NELEM=MAXKN/7
+         ELSE
+            NELEM=MAXKN/4
+         ENDIF
+         ALLOCATE(QFR(MAXKN))
+         CALL LCMGET(IPTRK,'QFR',QFR)
+         CALL FLDBH2(ISPLH,NEL,NUN,NELEM,EVECT,VOL,IDL,KN,QFR,RH,RT)
+         DEALLOCATE(QFR,RT,RH)
+      ELSE IF((IELEM.GT.0).AND.(ITYPE.EQ.8).AND.(ICOL.EQ.4).AND.
+     1        (ISPLH.GT.1)) THEN
+*        MESH CENTERED FINITE DIFFERENCES IN HEXAGONAL GEOMETRY.
+         ALLOCATE(QFR(MAXKN))
+         CALL LCMGET(IPTRK,'QFR',QFR)
+         CALL FLDBH1(NEL,NUN,LL4,EVECT,VOL,IDL,KN,QFR)
+         DEALLOCATE(QFR)
+      ENDIF
+*----
+*  RELEASE BIVAC SPECIFIC TRACKING INFORMATION
+*----
+      DEALLOCATE(KN)
+      RETURN
+      END