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-   -   what exactly is the Courant Number ??? (http://www.cfd-online.com/Forums/cfx/22892-what-exactly-courant-number.html)

CFX Novice July 26, 2006 14:09

what exactly is the Courant Number ???
 
Please, could you explain what is the Courant Number? I tried to find it in CFX-doc, but there is mentioned only with timestem adaptation. But I'd lik to understand it more. So is it has any math. definion? Thanks in advance

What is my problem - I hav a hard problem with transident run (pointed into time-average solutin, I don't care about the unsteady effect) but my courant number varies from 150 to 600 within a few timesteps. Could be it problem with convergence? Thanks

I'm using SST, unstructured mesh, Re 7.5e7 and TS is 0.5 s

mike July 26, 2006 14:40

Re: what exactly is the Courant Number ???
 
Hi Novice,

I recommend you to write "courant number" in search, and you will find necessary information about it. If you are using cfx, and you are interested in time-averaged solution, you dont need to worry about it.

Mike


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