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Marie-Anne March 23, 2006 17:21

operating density in buoyancy driven flow
 
This is a question on the use of the operating density. I have a buyoancy driven flow in an open chemney with heated walls. I always used the incompressible ideal gas density for the air and an operating density equal to the volume average of the density over the whole chemney. However, I just tried to unselect the operating density option and instead of going up, the major part of the flow goes down. The result is therefore very different. Could anyone please explain me which option I should choose ?

Thank you !

Marie-Anne


Jim_Park March 24, 2006 10:48

Re: operating density in buoyancy driven flow
 
Sounds as if you're using a commercial code. Which one?

Marie-Anne March 24, 2006 10:52

Re: operating density in buoyancy driven flow
 
Hi, I am using FLUENT6.2.16. But maybe it is the same in every commercial codes ?



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