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carno December 23, 2004 05:25

cavitation model
 
Hi all,

How effective is the cavitation model in starcd? I have simulated centrifugal pump and it is not giving good results in cavitation region. In fact performance is not dropping because of cavitation.

Anybody has any experience?

thanks

Jörn Beilke December 23, 2004 05:43

Re: cavitation model
 
Which model did you use and which version of StarCD?

carno December 23, 2004 07:49

Re: cavitation model
 
I used barometric model in 3.15. It is taking too much time also. This is expected I think, I read in literature also.

Thanks for reply.

Jörn Beilke December 23, 2004 08:15

Re: cavitation model
 
Don't use the barotropic model and switch to v324.

carno December 23, 2004 08:34

Re: cavitation model
 
I do not have prier cavitation modelling experience. so I used default model. Curruntly I can not switch to v324 immediately. For time being what is the solution? will BTF model (another one in starcd) work. I think it is very unstable.

Thanks for reply.

Jörn Beilke December 23, 2004 09:25

Re: cavitation model
 
Sorry that I can't be more specific, but it took me several month of computing time to find out what I have to do. So I can't give away all this for free.

Carno December 24, 2004 00:26

Re: cavitation model
 
Right. Anyway thanks for your help Jörn.


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