slena.F File Reference

#include "implicit_f.inc"

Go to the source code of this file.

Functions/Subroutines
subroutine	slena (n1x, n2x, n3x, n4x, n5x, n6x, n1y, n2y, n3y, n4y, n5y, n6y, n1z, n2z, n3z, n4z, n5z, n6z, x1, x2, x3, x4, x5, x6, x7, x8, y1, y2, y3, y4, y5, y6, y7, y8, z1, z2, z3, z4, z5, z6, z7, z8, aream, nel)

Function/Subroutine Documentation

slena()

subroutine slena	(		n1x,
			n2x,
			n3x,
			n4x,
			n5x,
			n6x,
			n1y,
			n2y,
			n3y,
			n4y,
			n5y,
			n6y,
			n1z,
			n2z,
			n3z,
			n4z,
			n5z,
			n6z,
			x1,
			x2,
			x3,
			x4,
			x5,
			x6,
			x7,
			x8,
			y1,
			y2,
			y3,
			y4,
			y5,
			y6,
			y7,
			y8,
			z1,
			z2,
			z3,
			z4,
			z5,
			z6,
			z7,
			z8,
			aream,
		integer, intent(in)	nel )

Definition at line 29 of file slena.F.

C
C NOTE : SURFACE OF FACETS IS AVAILABLE FOR ALE ELEMENTS
C
C-----------------------------------------------
C   I m p l i c i t   T y p e s
C-----------------------------------------------
#include      "implicit_f.inc"
C-----------------------------------------------
C   D u m m y   A r g u m e n t s
C-----------------------------------------------
      INTEGER, INTENT(IN) :: NEL
      INTEGER J
      my_real
     .   x1(*), x2(*), x3(*), x4(*), x5(*), x6(*), x7(*), x8(*),
     .   y1(*), y2(*), y3(*), y4(*), y5(*), y6(*), y7(*), y8(*),  
     .   z1(*), z2(*), z3(*), z4(*), z5(*), z6(*), z7(*), z8(*),
     .   n1x(*), n2x(*), n3x(*), n4x(*), n5x(*), n6x(*),
     .   n1y(*), n2y(*), n3y(*), n4y(*), n5y(*), n6y(*),
     .   n1z(*), n2z(*), n3z(*), n4z(*), n5z(*), n6z(*),
     .   aream(*)
C-----------------------------------------------
C   C o m m o n   B l o c k s
C-----------------------------------------------
C-----------------------------------------------
C   L o c a l   V a r i a b l e s
C-----------------------------------------------
      INTEGER I
C     REAL
      my_real
     .   area(6)
C-----------------------------------------------
      DO i=1,nel
        n1x(i)=(y3(i)-y1(i))*(z2(i)-z4(i)) - (z3(i)-z1(i))*(y2(i)-y4(i))
        n1y(i)=(z3(i)-z1(i))*(x2(i)-x4(i)) - (x3(i)-x1(i))*(z2(i)-z4(i))
        n1z(i)=(x3(i)-x1(i))*(y2(i)-y4(i)) - (y3(i)-y1(i))*(x2(i)-x4(i))
        area(1)=n1x(i)**2+n1y(i)**2+n1z(i)**2
C
        n2x(i)=(y7(i)-y4(i))*(z3(i)-z8(i)) - (z7(i)-z4(i))*(y3(i)-y8(i))
        n2y(i)=(z7(i)-z4(i))*(x3(i)-x8(i)) - (x7(i)-x4(i))*(z3(i)-z8(i))
        n2z(i)=(x7(i)-x4(i))*(y3(i)-y8(i)) - (y7(i)-y4(i))*(x3(i)-x8(i))
        area(2)=n2x(i)**2+n2y(i)**2+n2z(i)**2
C
        n3x(i)=(y6(i)-y8(i))*(z7(i)-z5(i)) - (z6(i)-z8(i))*(y7(i)-y5(i))
        n3y(i)=(z6(i)-z8(i))*(x7(i)-x5(i)) - (x6(i)-x8(i))*(z7(i)-z5(i))
        n3z(i)=(x6(i)-x8(i))*(y7(i)-y5(i)) - (y6(i)-y8(i))*(x7(i)-x5(i))
        area(3)=n3x(i)**2+n3y(i)**2+n3z(i)**2
C
        n4x(i)=(y2(i)-y5(i))*(z6(i)-z1(i)) - (z2(i)-z5(i))*(y6(i)-y1(i))
        n4y(i)=(z2(i)-z5(i))*(x6(i)-x1(i)) - (x2(i)-x5(i))*(z6(i)-z1(i))
        n4z(i)=(x2(i)-x5(i))*(y6(i)-y1(i)) - (y2(i)-y5(i))*(x6(i)-x1(i))
        area(4)=n4x(i)**2+n4y(i)**2+n4z(i)**2
C
        n5x(i)=(y7(i)-y2(i))*(z6(i)-z3(i)) - (z7(i)-z2(i))*(y6(i)-y3(i))
        n5y(i)=(z7(i)-z2(i))*(x6(i)-x3(i)) - (x7(i)-x2(i))*(z6(i)-z3(i))
        n5z(i)=(x7(i)-x2(i))*(y6(i)-y3(i)) - (y7(i)-y2(i))*(x6(i)-x3(i))
        area(5)=n5x(i)**2+n5y(i)**2+n5z(i)**2
C
        n6x(i)=(y8(i)-y1(i))*(z4(i)-z5(i)) - (z8(i)-z1(i))*(y4(i)-y5(i))
        n6y(i)=(z8(i)-z1(i))*(x4(i)-x5(i)) - (x8(i)-x1(i))*(z4(i)-z5(i))
        n6z(i)=(x8(i)-x1(i))*(y4(i)-y5(i)) - (y8(i)-y1(i))*(x4(i)-x5(i))
        area(6)=n6x(i)**2+n6y(i)**2+n6z(i)**2
        aream(i)= max(area(1),area(2),area(3),area(4),area(5),area(6))
      ENDDO
      RETURN