the problem on density ratio in icoFsiFoam with weakly coupling -- CFD Online Discussion Forums

April 23, 2012, 06:36	the problem on density ratio in icoFsiFoam with weakly coupling	#1
M.Arima New Member Masashi Arima Join Date: Apr 2012 Posts: 2 Rep Power: 0	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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