Can I define grids motion as a time functions

Darcy

Dear all

The complete title is 'Can I define grids motion as a time functions in a command file?'

In CFX-4, I think it not a easy job to use USRGRD for the definition of grids motion. I saw the desk calculator mode in command file today.I wondered if it can help me define grids motion to be a time function immediately in command file. To give my comcept, I give the commmand file codes below:

>>GRID MOTION PARAMETERS

#CALC

ALPHA = OMEGAT ** 2.0 / (4.0 * 3.41592);

OMEGA = ALPHA * TIME;

#ENDCALC

/* THE VARIABLE 'TIME' IS TIME VALUE OF TRANSIENT FLOW FIELD */

BLOCK NAMES 'BLOCK-NUMBER-1','BLOCK-NUMBER-2'

POSITION OF MATION AXIS 3 * 0.0

DIRCETION VECTOR OF MOTION AXIS -1.0 0.0 0.0

ROTATION SPEED #OMEGA

>>END

I make grids 'BLOCK-NUMBER-1' and 'BLOCK-NUMBER-2' rotate about the axis defined by (0,0,0) and (-1,0,0). The rotation speed is a linear time function. The rotation speed is 0 at t = 0 and OMEGAT when t = T. What's more the rotation acceleration is constant.

Is it all right? If it's not, pls. tell me what is not correct. Thx.

P.s. Is there someone tell me how to use CALL DEF('.spch.') and CALL DEF('.indc.')