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Forum: OpenFOAM Running, Solving & CFD

October 25, 2010, 04:46

Replies: 29

openfoam for heat transfer

Views: 11,340

Posted By Hasselhoff

In HVAC, we have low Reynolds numbers and high...

In HVAC, we have low Reynolds numbers and high turbulence ratios (10-75%). Especially the turbulent normal stresses near walls and the transition effects at the inlets influence the flow.
Airflows...

Forum: OpenFOAM Running, Solving & CFD

October 24, 2010, 09:56

Replies: 29

openfoam for heat transfer

Views: 11,340

Posted By Hasselhoff

I will post my settings tomorrow, I don't have...

I will post my settings tomorrow, I don't have access to it now;) I was using the k omega SST for this one I think.

@ paka: if you chose to stay within the laminar setup, you don't need any...

Forum: OpenFOAM Running, Solving & CFD

October 24, 2010, 08:45

Replies: 29

openfoam for heat transfer

Views: 11,340

Posted By Hasselhoff

For windows I use heat flux boundaries. What kind...

For windows I use heat flux boundaries. What kind of turbulence model are you using?

Forum: OpenFOAM Running, Solving & CFD

October 24, 2010, 04:17

Replies: 29

openfoam for heat transfer

Views: 11,340

Posted By Hasselhoff

In my case, the cold air from the radiators sinks...

In my case, the cold air from the radiators sinks down to the floor as it is supposed to be. Maybe the 0.1m/s is just too weak of a flow in your case. Or maybe your domain bounding box is scaled too...

Forum: OpenFOAM Running, Solving & CFD

October 23, 2010, 21:48

Replies: 29

openfoam for heat transfer

Views: 11,340

Posted By Hasselhoff

Did you check your gravity settings? Tell us if...

Did you check your gravity settings? Tell us if you solved that problem, I was dealing with quite a similar problem some time ago.

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