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Old   October 17, 2005, 01:55
Default free surface outlet
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I am doing a free surface analysis. It is a manifold supplying coolant to the punch die assembly. Coolant is not fully filled in the manifold all the time (free surface). There are five outlets. I am not understanding what BC I should use for the outlets. Pressure or split outlet or any other. I do not know the flow split. So when I give atm pressure it diverges after 2 timesteps. If I use flow split outlet based on their area, run does not start at all, it comes out before starting. (some OS error)

Kindly help. Thanks in advance.
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Old   October 19, 2005, 05:59
Default Re: free surface outlet
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Have you tried to use piezometric pressure with environmental option on?

Hope this helps....
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Old   October 19, 2005, 07:31
Default Re: free surface outlet
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Thanks 4xF. It is running with same pressure BCs now after reduction of pressure under relaxation factor.
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