CFD Online Discussion Forums

CFD Online Discussion Forums (http://www.cfd-online.com/Forums/)
-   FLUENT (http://www.cfd-online.com/Forums/fluent/)
-   -   v2f model implementation for airfoil in FLUENT (http://www.cfd-online.com/Forums/fluent/46336-v2f-model-implementation-airfoil-fluent.html)

Sunil October 15, 2007 17:49

v2f model implementation for airfoil in FLUENT
 
Hi, I am trying to simulate airfoil flow using v2f model. I came across the udf from a website to implement the model:

http://www.fh-pinkafeld.ac.at/fhplus/download.htm

I think I have the case file setting correct. I ran a simple channel flow and everything works fine. Whereas for the airfoil, the values go to Nan after about 50 iteration. I have tried reducing the urf and gone till 0.1, but the solution does blow up. The cd and cl values are very very high. To keep things simple its just a 2d steady state simulation.

If anybody has experience with the implementation of v2f in FLUENT, I'd appreciate if you could share your experience.

Thanks


selvaganesh October 16, 2007 01:48

Re: v2f model implementation for airfoil in FLUENT
 
hi, instead of using UDF u can get the v2f model in Fluent turbulence panel itself. following is the procedure: define>model>vis>turbulence> after this type: <v2f model> enter

Kanarya January 16, 2014 08:15

hi Sunil,

Can you help me about editing the source terms v2 and f in fluent?
did you edit them in the TKE or?
thanks in advance!

Quote:

Originally Posted by Sunil
;146226
Hi, I am trying to simulate airfoil flow using v2f model. I came across the udf from a website to implement the model:

http://www.fh-pinkafeld.ac.at/fhplus/download.htm

I think I have the case file setting correct. I ran a simple channel flow and everything works fine. Whereas for the airfoil, the values go to Nan after about 50 iteration. I have tried reducing the urf and gone till 0.1, but the solution does blow up. The cd and cl values are very very high. To keep things simple its just a 2d steady state simulation.

If anybody has experience with the implementation of v2f in FLUENT, I'd appreciate if you could share your experience.

Thanks



All times are GMT -4. The time now is 05:08.