velocity inlet vs pressure inlet

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  • Last Post 08 March 2019
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Malik posted this 08 March 2019

Hy 

I have a simple question regarding velocity inlet BC, weather we need to give the total velocity or avg velocity.
and 

if we give inlet BC as pressure inlet, how to removed the reversed flow at inlet,(reducing relaxsation factor )etc.

kind regards 
Malik 

 

 

abenhadj posted this 08 March 2019

1/You give the velocity such that the velocity times density times area gives the mass flow rate at that boundary 

2/And by providing a good initial guess for the pressure field. Just initialize so that the flow knows from the beginning the way it has to follow

Best regards,

Amine

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