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v2f model implementation for airfoil in FLUENT

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Old   October 15, 2007, 17:49
Default v2f model implementation for airfoil in FLUENT
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Sunil
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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

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Old   October 16, 2007, 01:48
Default Re: v2f model implementation for airfoil in FLUENT
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selvaganesh
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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
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Old   January 16, 2014, 08:15
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rkhr
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Kanarya is on a distinguished road
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

Last edited by Kanarya; February 13, 2014 at 12:51.
Kanarya is offline   Reply With Quote

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