Full Buoyancy model

April 16, 2003, 12:04

Hi all,

How to introduce full buoyancy model in CFX 5.5.1. In the documentation it's given that for the full buoyancy model a source term need to be added to the momentum equation (=Thermal expansivity*(den-ref.den)) where in Build form i need to introduce this term?

Thanks, Swapnil

April 28, 2003, 22:30

Hi Swapnil, the use of the Boussinesq or the Full Buoyancy model is determined automatically, depending on the setup of your simulation. Mike

April 30, 2003, 09:54

Mike, can you explain to me what thermal expansivity is ? I've looked in some text books but struggle to find it. Cheers Bob

April 16, 2003, 12:04	Full Buoyancy model	#1
Swapnil Guest Posts: n/a	Hi all, How to introduce full buoyancy model in CFX 5.5.1. In the documentation it's given that for the full buoyancy model a source term need to be added to the momentum equation (=Thermal expansivity*(den-ref.den)) where in Build form i need to introduce this term? Thanks, Swapnil

April 28, 2003, 22:30	Re: Full Buoyancy model	#2
Mike Guest Posts: n/a	Hi Swapnil, the use of the Boussinesq or the Full Buoyancy model is determined automatically, depending on the setup of your simulation. Mike

April 30, 2003, 09:54	Re: Full Buoyancy model	#3
Bob Guest Posts: n/a	Mike, can you explain to me what thermal expansivity is ? I've looked in some text books but struggle to find it. Cheers Bob

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