Applying a location Based Gravity

mohammad · October 9, 2019, 23:50

Hi,

I am trying to simulate flow and I would like to apply a formula (filed function) for the gravity option. My formula states that the value of the gravity is dependent on the local position, varying along the my vertical direction.

However, when I apply any formulas for the gravity in which the gravity should be calculated based on other position of, receive an error.

Is there any way to apply this type of formulas to STARCCM+?

ping · October 10, 2019, 00:19

you should be able to do it by setting gravity to zero and applying the required forces as a momentum source

October 9, 2019, 23:50	Applying a location Based Gravity	#1
mohammad Senior Member mohammad Join Date: Dec 2010 Location: UK Posts: 245 Rep Power: 16	Hi, I am trying to simulate flow and I would like to apply a formula (filed function) for the gravity option. My formula states that the value of the gravity is dependent on the local position, varying along the my vertical direction. However, when I apply any formulas for the gravity in which the gravity should be calculated based on other position of, receive an error. Is there any way to apply this type of formulas to STARCCM+?

October 10, 2019, 00:19		#2
ping Senior Member Ping Join Date: Mar 2009 Posts: 556 Rep Power: 20	you should be able to do it by setting gravity to zero and applying the required forces as a momentum source mohammad likes this.

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