v2f model implementation for airfoil in FLUENT

October 15, 2007, 18:49

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

October 16, 2007, 02:48

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

Turbo_hrf · December 3, 2015, 04:07

hello, I try to reach this website, but it did not work. why?

alinik · December 7, 2016, 19:17

Does anyone here has the UDF source files in the address mentioned in the very first post of this thread?
The files seems to have been removed from that address.

Thanks,
Ali

October 15, 2007, 18:49	v2f model implementation for airfoil in FLUENT	#1
Sunil Guest Posts: n/a	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

October 16, 2007, 02:48	Re: v2f model implementation for airfoil in FLUENT	#2
selvaganesh Guest Posts: n/a	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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December 3, 2015, 04:07		#4
Turbo_hrf New Member angela huang Join Date: Nov 2015 Posts: 6 Rep Power: 10	hello, I try to reach this website, but it did not work. why?

December 7, 2016, 19:17		#5
alinik Senior Member ali Join Date: Oct 2009 Posts: 318 Rep Power: 18	Does anyone here has the UDF source files in the address mentioned in the very first post of this thread? The files seems to have been removed from that address. Thanks, Ali