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*DECK FLDTRI
SUBROUTINE FLDTRI(IPTRK,NEL,NUN,EVECT,MAT,VOL,IDL)
*
*-----------------------------------------------------------------------
*
*Purpose:
* Calculation of the averaged flux in TRIVAC.
*
*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 trivac tracking information.
* NEL total number of finite elements.
* NUN total number of unknown per energy group.
* EVECT variational coefficients of the flux (contained in position
* EVECT(1) to EVECT(LL4)).
* 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 (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,CHEX
INTEGER ITP(NSTATE)
INTEGER, DIMENSION(:), ALLOCATABLE :: KN
REAL, DIMENSION(:), ALLOCATABLE :: XX,DD,T,TS
*----
* RECOVER TRIVAC SPECIFIC TRACKING INFORMATION
*----
CALL LCMGET(IPTRK,'STATE-VECTOR',ITP)
ITYPE=ITP(6)
CYLIND=(ITYPE.EQ.3).OR.(ITYPE.EQ.6)
CHEX=(ITYPE.EQ.8).OR.(ITYPE.EQ.9)
IELEM=ABS(ITP(9))
LL4=ITP(11)
ICHX=ITP(12)
ISPLH=ITP(13)
LX=ITP(14)
LY=ITP(15)
LZ=ITP(16)
CALL LCMLEN(IPTRK,'KN',MAXKN,ITYLCM)
ALLOCATE(KN(MAXKN))
CALL LCMGET(IPTRK,'KN',KN)
*
IF((ICHX.EQ.1).AND.(.NOT.CHEX)) THEN
* LAGRANGIAN FINITE ELEMENTS.
ALLOCATE(XX(LX*LY*LZ),DD(LX*LY*LZ))
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 FLDTN2(NEL,LL4,IELEM,CYLIND,EVECT,XX,DD,MAT,VOL,IDL,KN,
1 LC,T,TS)
DEALLOCATE(TS,T,DD,XX)
ELSE IF((ICHX.EQ.1).AND.CHEX) THEN
* MESH CORNER FINITE DIFFERENCES IN HEXAGONAL GEOMETRY.
CALL FLDTH2(ISPLH,NEL,NUN,EVECT,MAT,VOL,IDL,KN)
ELSE IF((ICHX.EQ.3).AND.(ISPLH.GT.1).AND.CHEX) THEN
* MESH CENTERED FINITE DIFFERENCES IN HEXAGONAL GEOMETRY.
CALL FLDTH1(ISPLH,NEL,LL4,EVECT,MAT,VOL,IDL,KN)
ENDIF
*----
* RELEASE TRIVAC SPECIFIC TRACKING INFORMATION
*----
DEALLOCATE(KN)
RETURN
END
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