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Is HLLC a positivity preserving flux?

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Old   January 12, 2013, 23:47
Question Is HLLC a positivity preserving flux?
Jianming Liu
Join Date: Mar 2009
Location: China
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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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