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-   -   Is Buoyancy working? (https://www.cfd-online.com/Forums/star-ccm/255794-buoyancy-working.html)

GV77 April 29, 2024 21:51

Is Buoyancy working?
 
3 Attachment(s)
Hi,
I'm doing a simulation of a cold jet in hot crossflow and I have applied the gravity model with the Low Reynolds k-epsilon model.
The solution is not converging in the middle of the domain (velocity and temperature are stable near the injection zone). I believe that it's because of the buoyancy term or buoyancy effects, and I would like to see buoyancy source term. In my uploaded scene the displayed field is the buoyancy coefficient field (and not the buoyancy source).
There is also an default field function called KeTurbBuoyancySource, but when I choose it, it doesn't display anything.
Someone knows anything about this.


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