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-   -   PitzDaily tutorial with Xoodles (http://www.cfd-online.com/Forums/openfoam-solving/59235-pitzdaily-tutorial-xoodles.html)

christianvhoersten January 11, 2008 11:17

Hello to all, My situation:
 
Hello to all,

My situation:
I want to calculate the tutorial case PitzDaily (fig.1) with the Weller bXi-Modell for a comparison with the measurements and another combustion model.
The calculations runs, but the results do not correspond to the measurements. I started with an fully turbulent flow (got it from the other combustion model, fig.2) but the flow is going to be to laminar (fig.3) and I do not know why this happens. In the paper [1] by Weller this combustion model seems to work very good in this case.
I would be glad to hear from anyone who has experience obtaining successful calculations with this case.

Thanks in advance,
Christian

Approach:
- take the tutorial case
- map a start solution from a case, calculated with another combustion model
- changed boundaries like in Tab.1

the complete case can be found here:
http://palamedes.fms.uni-rostock.de/...aily3D_bXi.zip

[1] Weller, H.G., at al., "APPLICATION OF A FLAME-WRINKLING LES COMBUSTION MODEL TO A TURBULENT MIXING LAYER", Twenty-Seventh Symposium (International) on Combustion/The Combustion Institute

http://www.cfd-online.com/OpenFOAM_D...ges/1/6384.jpg
http://www.cfd-online.com/OpenFOAM_D...ges/1/6385.jpg
http://www.cfd-online.com/OpenFOAM_D...ges/1/6386.jpg


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