Backward facing step with heat transfer using low-re model

neeraj · January 10, 2013, 00:39

Hi,
I went through many threads related to low-re models and turbulent heat transfer modeling. With whatever little knowledge i acquired i am trying to run this backward facing step problem with turbulent heat transfer using Lam-Bremhorst model. But as always its giving error :-p .I have uploaded my case along with problem details here. Please be kind enough to download my case and go through it to help me understand my mistakes :-)
NB: 1) I didnt use any wall functions since its a low re model. (but in the nacaairfoil tutorial they are using wallfunctions... i dont know the reason?)
2) I am not sure abut why we need a boundary condition for alfat and kaapat and nut.
3) I am giving beta =0 and g=0 because i am having a constant density problem without buoyancy effects.

neeraj · January 13, 2013, 04:29

Great ... good response... keep it up ....!

January 10, 2013, 00:39	Backward facing step with heat transfer using low-re model	#1
neeraj New Member OpenFoam Join Date: Jul 2012 Posts: 24 Rep Power: 13	Hi, I went through many threads related to low-re models and turbulent heat transfer modeling. With whatever little knowledge i acquired i am trying to run this backward facing step problem with turbulent heat transfer using Lam-Bremhorst model. But as always its giving error :-p .I have uploaded my case along with problem details here. Please be kind enough to download my case and go through it to help me understand my mistakes :-) NB: 1) I didnt use any wall functions since its a low re model. (but in the nacaairfoil tutorial they are using wallfunctions... i dont know the reason?) 2) I am not sure abut why we need a boundary condition for alfat and kaapat and nut. 3) I am giving beta =0 and g=0 because i am having a constant density problem without buoyancy effects. Last edited by neeraj; January 10, 2013 at 00:41. Reason: more details

January 13, 2013, 04:29		#2
neeraj New Member OpenFoam Join Date: Jul 2012 Posts: 24 Rep Power: 13	Great ... good response... keep it up ....! justits and Emiranda like this.

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