Bifurcation explode at intersection -- CFD Online Discussion Forums

June 28, 2011, 04:10

Bifurcation explode at intersection

liguifan

Member

Guifan Li

Join Date: Apr 2011

Location: New York City, U.S.

Posts: 96

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Hi everyone,

I am simulation the blood flow in the bifurcation( I used Gmsh to mesh the bifurcation and import it to Openfoam). When I icoFoam it, the courant number always explode at the intesecation which you can view it one the picutures below.

It seems like the velocity is reflected by the sharp corner and pierce the wall then cause it explode.

I am quite new to Openfoam and not sure whether it is because my mesh or because of other reasons.

Can anyone point out what's going wrong?

Screenshot.jpg
Screenshot.jpg

Screenshot-1.jpg

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