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-   -   Is HLLC a positivity preserving flux? (http://www.cfd-online.com/Forums/main/111684-hllc-positivity-preserving-flux.html)

liujmljm January 12, 2013 23:47

Is HLLC a positivity preserving flux?
 
Hi, is HLLC a positivity preserving flux? If the solution will break down, when we use first order scheme using HLLC flux near vacuum. I find some paper say HLLC work well near low densities. But in my a simulation, near vacuum, the solution break down. Maybe HLLC is not a positivity preserving flux. I am not sure. Do you anyone know about it.
Thank you very much.


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