Gravity in STAR-CD

March 8, 2008, 00:18

I am trying to simulate open channel flow with slope in X direction. Do I have to turn on gravity in X direction? Does that matter? I did with and without gravity, I got same results. Thank you.

Sachin

March 8, 2008, 10:20

Did the results make sense?

I just did a VOF problem with gravity (acceleration) forces. I had to specify gravity & activate bouyancy. Without bouyancy, the results were not accounting for the "gravity" forces. With bouyancy the results matched hand calcs.

March 8, 2008, 00:18	Gravity in STAR-CD	#1
Sachin Guest Posts: n/a	I am trying to simulate open channel flow with slope in X direction. Do I have to turn on gravity in X direction? Does that matter? I did with and without gravity, I got same results. Thank you. Sachin

March 8, 2008, 10:20	Re: Gravity in STAR-CD	#2
Pauli Guest Posts: n/a	Did the results make sense? I just did a VOF problem with gravity (acceleration) forces. I had to specify gravity & activate bouyancy. Without bouyancy, the results were not accounting for the "gravity" forces. With bouyancy the results matched hand calcs.

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