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-   -   the problem on density ratio in icoFsiFoam with weakly coupling (http://www.cfd-online.com/Forums/openfoam-solving/100289-problem-density-ratio-icofsifoam-weakly-coupling.html)

M.Arima April 23, 2012 06:36

the problem on density ratio in icoFsiFoam with weakly coupling
 
Dear, all

I'm trying to test a case of a cantileiver column using the tutorial of the icoFsiFoam solver in openfoam 1.5x.

icoFsiFoam is known as the solver of Fluid-Strucutre Interactions with weakly coulping.

I would like to know why FSI solver with weakly couping leads to a serious divergence problem when densities between strucuture and fluid are similar or, in other words, desitiy ratio (strucuture/fluid) is high.

If you know some hints and thesises on it, your comments are greatly appreciated.

Regards!


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