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Brad June 11, 2002 23:54

manipulating post data

My question involves the use of velocity field data to solve for the acceleration field data for a model, where Du/Dt = du/dt + u*du/dx + v*du/dy + w*du/dz (D=substantial derivative,d=partial derivative) on and so forth. I guess I'm wondering how to differentiate a specific velocity component in a specific direction.

Thanks, Brad

Daniel June 13, 2002 10:03

Re: manipulating post data
Well, at least for the steady-state case you could load the velocity gradients into 3 registers via the post registers operations tool, then load the velocity components into 3 more registers and multiply them accordingly.

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