PROGRAM SETFEM3
C=======================================================================
C DATA GENERATING PROGRAM FOR FEM3Q.FOR
C DOMAIN : TLX BY TLY
C BOUNDARY CONDITIONS
C ON FACES OF -X AND -Y: T(X,Y)=0.
C ON FACE OF +X: DT/DN = 0
C ON FACE OF +Y: T(X,Y) = SIN ( 0.25*PI*X )
C EIJI FUKUMORI NOVEMBER 28, 1995
C FEBRUARY 12, 2013
C=======================================================================
IMPLICIT REAL*8 ( A-H , O-Z )
PARAMETER ( ND=3, MXE=2600, MXN=2400, MXB=1000 )
PARAMETER ( TLX = 2.D0, TLY = 2.D0 )
C=======================================================================
DIMENSION NODEX(MXE,ND),XCOORD(MXN),YCOORD(MXN),IBNDT(MXB),
* BVT(MXB), ITYPET(MXB)
CHARACTER PROJECT*14,EXFILE*3
LOGICAL YES
C=======================================================================
DATA PROJECT / 'FEM03INPUT.DAT' /
C=======================================================================
C NEY: NEMBER OF VERTICAL ELEMENTS (NUMBER OF NODES: NEY+1)
C NEX: NEMBER OF HORIZONTAL ELEMENTS (NUMBER OF NODES: NEX+1)
C=======================================================================
WRITE (*,210)
210 FORMAT( 'TYPE IN NUMBER OF ELEMENTS IN X-COORD (NEX) = ' $ )
READ (*,*) NEX
NEX = NEX / 2 * 2
IF ( NEX .LT. 2 ) NEX = 2
WRITE (*,220)
220 FORMAT( 'TYPE IN NUMBER OF ELEMENTS IN Y-COORD (NEY) = ' $ )
READ (*,*) NEY
NEY = NEY / 2 * 2
IF ( NEY .LT. 2 ) NEY = 2
WRITE(*,*)' NEX =',NEX, ' NEY =', NEY
C
DX = TLX / NEX
DY = TLY / NEY
NDX=NEX+1
NDY=NEY+1
EXX=1.
EXY = 0.
EYY=1.
C=======================================================================
C ELEMENT CREATION
NE = 0
DO I = 1 , NEY
DO J = 1 , NEX
NE = NE + 1
IF ( NE .GT. MXE ) STOP 'NE > MXE'
IF ( (I+J)/2*2 - (I+J) .EQ. 0 ) THEN
NODEX(NE,1) = NDX*(I-1) + J
NODEX(NE,2) = NODEX(NE,1) + 1
NODEX(NE,3) = NODEX(NE,2) +NDX
NE = NE + 1
NODEX(NE,1) = NDX*(I-1) + J
NODEX(NE,2) = NODEX(NE,1)+1+NDX
NODEX(NE,3) = NODEX(NE,1)+NDX
ELSE
NODEX(NE,1) = NDX*(I-1) + J
NODEX(NE,2) = NODEX(NE,1) + 1
NODEX(NE,3) = NODEX(NE,1) + NDX
NE = NE + 1
NODEX(NE,1) = NDX*(I-1) + J + 1
NODEX(NE,2) = NODEX(NE,1) + NDX
NODEX(NE,3) = NODEX(NE,2) - 1
END IF
END DO
END DO
C=======================================================================
C NODAL COORDINATE CREATION
NNODE = 0
DO I = 1 , NDY
DO J = 1 , NDX
NNODE = NNODE + 1
IF ( NNODE .GT. MXN ) STOP 'NNODE > MXN'
NODE = NDX*(I-1) + J
XCOORD(NODE) = DX*(J-1)
YCOORD(NODE) = DY*(I-1)
END DO
END DO
C=======================================================================
PI = 4.D0 * DATAN (1.D0)
C BOUNDARY CONDITIONS
C--------- MOMENTUM EQUATIONS AND HEAT EQUATION
NBT = 0
C--------- FACE OF +Y AND -Y
DO J = 1 , NDX
C--------- -Y
NBT = NBT + 1
IBNDT(NBT) = J
ITYPET(NBT) = 1
BVT(NBT) = 0.D0
C--------- +Y
NBT = NBT + 1
IBNDT(NBT) = NDY*(NDY-1) + J
ITYPET(NBT) = 1
BVT(NBT) = DSIN ( 0.25D0*PI*XCOORD(IBNDT(NBT)))
END DO
C--------- FACE OF +X AND -X
C -X
DO I = 2 , NEY
NBT = NBT + 1
IBNDT (NBT ) = NDX*(I-1) + 1
ITYPET(NBT) = 1
BVT(NBT ) = 0.D0
END DO
C=======================================================================
WRITE (*,*) ' NUMBER OF ELEMENTS (NE) = ',NE
WRITE (*,*) ' NUMBER OF NODAL POINTS (NNODE) = ',NNODE
C=======================================================================
C DATA FILE INQUIRY
EXFILE = 'NEW'
INQUIRE ( FILE = PROJECT, EXIST = YES )
IF ( YES ) EXFILE='OLD'
C=======================================================================
C MAKING DATA FILES
C---------- 'PROJECT'
IR = 1
OPEN ( IR, FILE=PROJECT, STATUS = EXFILE )
WRITE (IR,*) EXX, EXY, EYY
WRITE (IR,*) NE
DO IEL = 1 , NE
WRITE (IR,*) IEL,(NODEX(IEL,J),J=1,ND)
END DO
WRITE (IR,*) NNODE
DO NODE = 1 , NNODE
WRITE (IR,*) NODE,XCOORD(NODE),YCOORD(NODE)
END DO
WRITE (IR,*) NBT
DO I = 1 , NBT
WRITE (IR,*) IBNDT(I), ITYPET(I), BVT(I)
END DO
CLOSE (IR)
C=======================================================================
OPEN ( 1, FILE='ELEMENT3.OUT', STATUS = 'UNKNOWN' )
DO IEL = 1 , NE
DO J = 1 , ND
NODE = NODEX(IEL,J)
WRITE(1,*) XCOORD(NODE),YCOORD(NODE)
END DO
NODE = NODEX(IEL,1)
WRITE(1,*) XCOORD(NODE),YCOORD(NODE)
WRITE(1,*)
END DO
CLOSE (1)
C=======================================================================
CALL BANDWID ( ND, MXE, NE, NODEX , NBW )
C------ CREATION OF PARAMETER FILE TO BE USED IN INCLUDE STATEMENT
OPEN ( 1, FILE='PARAM.DAT', STATUS='UNKNOWN' )
WRITE (1,*) ' PARAMETER ( ND=',ND,')'
CCCCCCCCCCCCCCCC WRITE (1,*) ' PARAMETER ( INTEPT=',INTEPT,')'
WRITE (1,*) ' PARAMETER ( MXE=',NE,')'
WRITE (1,*) ' PARAMETER ( MXN=',NNODE,')'
WRITE (1,*) ' PARAMETER ( MXW=',NBW,')'
WRITE (1,*) ' PARAMETER ( MXB=',NBT,')'
CLOSE (1)
C=======================================================================
STOP "NORMAL TERMINATION"
END
C
C
SUBROUTINE BANDWID ( ND, MXE, NE, NODEX , NBW )
IMPLICIT REAL*8 ( A-H , O-Z )
DIMENSION NODEX(MXE,ND)
NBW = 0
DO I = 1 , NE
DO J = 1 , ND-1
DO K = J+1 , ND
NBW = MAX0(NBW,IABS(NODEX(I,J)-NODEX(I,K)))
END DO
END DO
END DO
NBW = NBW + 1
WRITE(*,*) 'HALF BANDWIDTH + 1 =', NBW
RETURN
END