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*DECK TRIDFC
SUBROUTINE TRIDFC(IMPX,LX,LY,LZ,CYLIND,NCODE,ICODE,ZCODE,MAT,XXX,
1 YYY,ZZZ,LL4,VOL,XX,YY,ZZ,DD,KN,QFR,IQFR)
*
*-----------------------------------------------------------------------
*
*Purpose:
* Numbering corresponding to a mesh centered finite difference (CHEBY
* type) or nodal collocation discretization in a 3-D geometry.
*
*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
* IMPX print parameter.
* LX number of elements along the X axis.
* LY number of elements along the Y axis.
* LZ number of elements along the Z axis.
* CYLIND cylindrical geometry flag (set with CYLIND=.true.).
* NCODE type of boundary condition applied on each side:
* I=1: X-; I=2: X+; I=3: Y-; I=4: Y+; I=5: Z-; I=6: Z+;
* NCODE(I)=1: VOID; NCODE(I)=2: REFL; NCODE(I)=4: TRAN;
* NCODE(I)=5: SYME; NCODE(I)=7: ZERO; NCODE(I)=20: CYLI.
* ICODE physical albedo index on each side of the domain.
* ZCODE albedo corresponding to boundary condition 'VOID' on each
* side (ZCODE(i)=0.0 by default).
* MAT mixture index assigned to each element.
* XXX Cartesian coordinates along the X axis.
* YYY Cartesian coordinates along the Y axis.
* ZZZ Cartesian coordinates along the Z axis.
*
*Parameters: output
* LL4 total number of unknown (variational coefficients) per
* energy group (order of system matrices).
* VOL volume of each element.
* XX X-directed mesh spacings.
* YY Y-directed mesh spacings.
* ZZ Z-directed mesh spacings.
* DD used with cylindrical geometry.
* KN element-ordered unknown list:
* .GT.0; neighbour index;
* =-1; void/albedo boundary condition;
* =-2; reflection boundary condition;
* =-3; ZERO flux boundary condition;
* =-4; SYME boundary condition (axial symmetry).
* QFR element-ordered boundary conditions.
* IQFR element-ordered physical albedo indices.
*
*-----------------------------------------------------------------------
*
INTEGER IMPX,LX,LY,LZ,NCODE(6),ICODE(6),MAT(LX*LY*LZ),LL4,
1 KN(6*LX*LY*LZ),IQFR(6*LX*LY*LZ)
REAL ZCODE(6),XXX(LX+1),YYY(LY+1),ZZZ(LZ+1),VOL(LX*LY*LZ),
1 XX(LX*LY*LZ),YY(LX*LY*LZ),ZZ(LX*LY*LZ),DD(LX*LY*LZ),
2 QFR(6*LX*LY*LZ)
LOGICAL CYLIND
*----
* LOCAL VARIABLES
*----
LOGICAL LL1,LALB
*
ALB(X)=0.5*(1.0-X)/(1.0+X)
*----
* IDENTIFICATION OF THE GEOMETRY. MAIN LOOP OVER THE ELEMENTS
*----
IF(IMPX.GT.0) WRITE(6,700) LX,LY,LZ
LXY=LX*LY
NUM1=0
KEL=0
DO 22 K0=1,LZ
DO 21 K1=1,LY
DO 20 K2=1,LX
KEL=KEL+1
XX(KEL)=0.0
YY(KEL)=0.0
ZZ(KEL)=0.0
VOL(KEL)=0.0
IF(MAT(KEL).LE.0) GO TO 20
XX(KEL)=XXX(K2+1)-XXX(K2)
YY(KEL)=YYY(K1+1)-YYY(K1)
ZZ(KEL)=ZZZ(K0+1)-ZZZ(K0)
IF(CYLIND) DD(KEL)=0.5*(XXX(K2)+XXX(K2+1))
DO 10 IC=1,6
QFR(NUM1+IC)=0.0
IQFR(NUM1+IC)=0
10 CONTINUE
FRX=1.0
FRY=1.0
FRZ=1.0
KK1=KEL-1
KK2=KEL+1
KK3=KEL-LX
KK4=KEL+LX
KK5=KEL-LXY
KK6=KEL+LXY
*----
* VOID, REFL, ZERO OR CYLI BOUNDARY CONTITION
*----
IF(K2.EQ.1) THEN
LL1=.TRUE.
ELSE
LL1=(MAT(KK1).EQ.0)
ENDIF
IF(LL1) THEN
LALB=(NCODE(1).EQ.1).OR.(NCODE(1).EQ.6)
IF(LALB.AND.(ICODE(1).EQ.0)) THEN
KK1=-1
QFR(NUM1+1)=ALB(ZCODE(1))
ELSE IF(LALB) THEN
KK1=-1
QFR(NUM1+1)=1.0
IQFR(NUM1+1)=ICODE(1)
ELSE IF(NCODE(1).EQ.2) THEN
KK1=-2
ELSE IF(NCODE(1).EQ.7) THEN
KK1=-3
ELSE IF(NCODE(1).EQ.20) THEN
KK1=-1
ENDIF
ENDIF
*
IF(K2.EQ.LX) THEN
LL1=.TRUE.
ELSE
LL1=(MAT(KK2).EQ.0)
ENDIF
IF(LL1) THEN
LALB=(NCODE(2).EQ.1).OR.(NCODE(2).EQ.6)
IF(LALB.AND.(ICODE(2).EQ.0)) THEN
KK2=-1
QFR(NUM1+2)=ALB(ZCODE(2))
ELSE IF(LALB) THEN
KK2=-1
QFR(NUM1+2)=1.0
IQFR(NUM1+2)=ICODE(2)
ELSE IF(NCODE(2).EQ.2) THEN
KK2=-2
ELSE IF(NCODE(2).EQ.7) THEN
KK2=-3
ELSE IF(NCODE(2).EQ.20) THEN
KK2=-1
ENDIF
ENDIF
*
IF(K1.EQ.1) THEN
LL1=.TRUE.
ELSE
LL1=(MAT(KK3).EQ.0)
ENDIF
IF(LL1) THEN
LALB=(NCODE(3).EQ.1).OR.(NCODE(3).EQ.6)
IF(LALB.AND.(ICODE(3).EQ.0)) THEN
KK3=-1
QFR(NUM1+3)=ALB(ZCODE(3))
ELSE IF(LALB) THEN
KK3=-1
QFR(NUM1+3)=1.0
IQFR(NUM1+3)=ICODE(3)
ELSE IF(NCODE(3).EQ.2) THEN
KK3=-2
ELSE IF(NCODE(3).EQ.7) THEN
KK3=-3
ELSE IF(NCODE(3).EQ.20) THEN
KK3=-1
ENDIF
ENDIF
*
IF(K1.EQ.LY) THEN
LL1=.TRUE.
ELSE
LL1=(MAT(KK4).EQ.0)
ENDIF
IF(LL1) THEN
LALB=(NCODE(4).EQ.1).OR.(NCODE(4).EQ.6)
IF(LALB.AND.(ICODE(4).EQ.0)) THEN
KK4=-1
QFR(NUM1+4)=ALB(ZCODE(4))
ELSE IF(LALB) THEN
KK4=-1
QFR(NUM1+4)=1.0
IQFR(NUM1+4)=ICODE(4)
ELSE IF(NCODE(4).EQ.2) THEN
KK4=-2
ELSE IF(NCODE(4).EQ.7) THEN
KK4=-3
ELSE IF(NCODE(4).EQ.20) THEN
KK4=-1
ENDIF
ENDIF
*
IF(K0.EQ.1) THEN
LL1=.TRUE.
ELSE
LL1=(MAT(KK5).EQ.0)
ENDIF
IF(LL1) THEN
LALB=(NCODE(5).EQ.1).OR.(NCODE(5).EQ.6)
IF(LALB.AND.(ICODE(5).EQ.0)) THEN
KK5=-1
QFR(NUM1+5)=ALB(ZCODE(5))
ELSE IF(LALB) THEN
KK5=-1
QFR(NUM1+5)=1.0
IQFR(NUM1+5)=ICODE(5)
ELSE IF(NCODE(5).EQ.2) THEN
KK5=-2
ELSE IF(NCODE(5).EQ.7) THEN
KK5=-3
ELSE IF(NCODE(5).EQ.20) THEN
KK5=-1
ENDIF
ENDIF
*
IF(K0.EQ.LZ) THEN
LL1=.TRUE.
ELSE
LL1=(MAT(KK6).EQ.0)
ENDIF
IF(LL1) THEN
LALB=(NCODE(6).EQ.1).OR.(NCODE(6).EQ.6)
IF(LALB.AND.(ICODE(6).EQ.0)) THEN
KK6=-1
QFR(NUM1+6)=ALB(ZCODE(6))
ELSE IF(LALB) THEN
KK6=-1
QFR(NUM1+6)=1.0
IQFR(NUM1+6)=ICODE(6)
ELSE IF(NCODE(6).EQ.2) THEN
KK6=-2
ELSE IF(NCODE(6).EQ.7) THEN
KK6=-3
ELSE IF(NCODE(6).EQ.20) THEN
KK6=-1
ENDIF
ENDIF
*----
* TRAN BOUNDARY CONDITION
*----
IF((K2.EQ.1).AND.(NCODE(1).EQ.4)) THEN
KK1=KEL+LX-1
ENDIF
IF((K2.EQ.LX).AND.(NCODE(2).EQ.4)) THEN
KK2=KEL+1-LX
ENDIF
IF((K1.EQ.1).AND.(NCODE(3).EQ.4)) THEN
KK3=KEL+(LY-1)*LX
ENDIF
IF((K1.EQ.LY).AND.(NCODE(4).EQ.4)) THEN
KK4=KEL-(LY-1)*LX
ENDIF
IF((K0.EQ.1).AND.(NCODE(5).EQ.4)) THEN
KK5=KEL+(LZ-1)*LXY
ENDIF
IF((K0.EQ.LZ).AND.(NCODE(6).EQ.4)) THEN
KK6=KEL-(LZ-1)*LXY
ENDIF
*----
* SYME BOUNDARY CONDITION
*----
IF((NCODE(1).EQ.5).AND.(K2.EQ.1)) THEN
KK1=-4
FRX=0.5
ELSE IF((NCODE(2).EQ.5).AND.(K2.EQ.LX)) THEN
KK2=-4
FRX=0.5
ENDIF
IF((NCODE(3).EQ.5).AND.(K1.EQ.1)) THEN
KK3=-4
FRY=0.5
ELSE IF((NCODE(4).EQ.5).AND.(K1.EQ.LY)) THEN
KK4=-4
FRY=0.5
ENDIF
IF((NCODE(5).EQ.5).AND.(K0.EQ.1)) THEN
KK5=-4
FRZ=0.5
ELSE IF((NCODE(6).EQ.5).AND.(K0.EQ.LZ)) THEN
KK6=-4
FRZ=0.5
ENDIF
*
VOL0=XX(KEL)*YY(KEL)*ZZ(KEL)*FRX*FRY*FRZ
IF(CYLIND) VOL0=6.2831853072*DD(KEL)*VOL0
VOL(KEL)=VOL0
KN(NUM1+1)=KK1
KN(NUM1+2)=KK2
KN(NUM1+3)=KK3
KN(NUM1+4)=KK4
KN(NUM1+5)=KK5
KN(NUM1+6)=KK6
NUM1=NUM1+6
20 CONTINUE
21 CONTINUE
22 CONTINUE
* END OF THE MAIN LOOP OVER ELEMENTS.
*
LL4=0
DO 40 KEL=1,LXY*LZ
IF(MAT(KEL).NE.0) LL4=LL4+1
40 CONTINUE
*
IF(IMPX.GE.2) THEN
WRITE(6,720) (VOL(I),I=1,LXY*LZ)
WRITE(6,750)
NUM1=0
DO 50 KEL=1,LXY*LZ
IF(MAT(KEL).LE.0) GO TO 50
WRITE (6,760) KEL,(KN(NUM1+I),I=1,6),(QFR(NUM1+I),I=1,6)
NUM1=NUM1+6
50 CONTINUE
ENDIF
RETURN
*
700 FORMAT(/53H TRIDFC: MESH CENTERED FINITE DIFFERENCE OR NODAL COL,
1 16HLOCATION METHOD.//34H NUMBER OF ELEMENTS ALONG X AXIS =,I3/
2 20X,14HALONG Y AXIS =,I3/20X,14HALONG Z AXIS =,I3)
720 FORMAT(/20H VOLUMES PER ELEMENT/(1X,1P,10E13.4))
750 FORMAT(/22H NUMBERING OF UNKNOWNS/1X,21(1H-)//
1 8H ELEMENT,5X,7HNUMBERS,50X,23HVOID BOUNDARY CONDITION)
760 FORMAT(1X,I6,7X,6I8,6X,6F9.2)
END
|
