Card 6x - Thermal Coupling Rotational Periodicity

This optional card specifies that thermal couplings should be rotationally periodic, meaning that an average angle is computed between the primary and secondary group of the thermal coupling, about the specified axis of rotation. The secondary group is rotated back by that angle before thermal couplings are calculated.

Parameters: L, TOGGLE, XO, YO, ZO, XDIR, YDIR, ZDIR

L

L is the code ROTATE (or 67)

TOGGLE

TOGGLE specifies how subsequent thermal couplings are treated.

  • TOGGLE = ON (or 4): all subsequent thermal couplings are treated as rotationally periodic.
  • TOGGLE = OFF (or 5): all subsequent thermal couplings are treated normally.

XO, YO, ZO

XO, YO, ZO specifies the start location of the axis vector.

XDIR, YDIR, ZDIR

XDIR, YDIR, ZDIR specifies the direction of the axis vector.

Code example


 $ GROUP2 is to be rotated about the z axis by the average angle between GROUP1 and
 $ GROUP2 before the thermal coupling is calculated.
 ROTATE ON 0.0 0.0 0.0 0.0 0.0 1.0
 AREA GROUP1 0 0 GROUP2 0 1.000000E+02 NEARA
 ROTATE OFF