How to specify varying gravity

April 10, 2007, 10:16

How do I specify gravity (or local acceleration) as a varying variable with radius: a = omega^2 * Radius ? I have a case with a rotating system where the flow is driven by the rotation. I have successfully applied a constant acceleration as gravity, but for rotating flow that varies with radius.

April 12, 2007, 07:39

I think in your case, constant gravity is sufficient. The centrifugal forces will be generated automatically when you use MFR or rotating mesh.

All the best.

April 10, 2007, 10:16	How to specify varying gravity	#1
Dr. Flow Squad Guest Posts: n/a	How do I specify gravity (or local acceleration) as a varying variable with radius: a = omega^2 * Radius ? I have a case with a rotating system where the flow is driven by the rotation. I have successfully applied a constant acceleration as gravity, but for rotating flow that varies with radius.

April 12, 2007, 07:39	Re: How to specify varying gravity	#2
carno Guest Posts: n/a	I think in your case, constant gravity is sufficient. The centrifugal forces will be generated automatically when you use MFR or rotating mesh. All the best.

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