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March 8, 2010, 17:14 |
"Full" buoyancy model in CFX
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#1 |
Senior Member
Join Date: Feb 2010
Posts: 148
Rep Power: 17 |
ANSYS CFX distinguishes between a "full" buoyancy model as opposed to a Boussinesq buoyancy model for turbulence. What is meant by a "full" buoyancy model?
Is this something intrinsic to CFX or is this a fundamental question related to turbulence modelling? Thanks so much for any information! |
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March 16, 2010, 22:59 |
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#2 |
Senior Member
David Gaden
Join Date: Apr 2009
Location: Winnipeg, Canada
Posts: 437
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Full buoyancy uses the density variations in the fluid to calculate buoyancy force. Boussinesq is for incompressible fluids - "pseudo" buoyancy. It approximates the density variations with a correlation to the temperature variation.
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March 18, 2010, 13:08 |
"Full" Buoyancy
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#3 |
Senior Member
Join Date: Feb 2010
Posts: 148
Rep Power: 17 |
Thanks! I see. So then is "full" buoyancy equivalant to a compressible flow model? It seems that there are some differences between the two?
Thank you very much for any further information! |
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