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-   -   ShockTube (http://www.cfd-online.com/Forums/openfoam-solving/59980-shocktube.html)

shuo October 10, 2006 21:44

What kind of boundary conditio
 
What kind of boundary conditions should I use for the walls and outlets of the shocktube case in sonicFoam, rhoSonicFoam...? It keeps giving me singularity errors when I use extrapolatedOutlet for the two exits and wall for the four walls.
Shuo

smith October 10, 2006 22:18

Dpends on your application. I
 
Dpends on your application. If you want to model a closed shocktube then use reflective BC's, and expect reflected shocks, otherwise use open BC's, say with continuous velocity and pressure.

I don't know why extrapolaedOutlet wouldn't work, you'd have to ask the OpenCFD people about that.


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