|January 20, 2013, 23:18||
Role of Courant number in Density solver
Join Date: Dec 2009
Posts: 23Rep Power: 7
I am using the implicit density solver to analyze the blowdown of a high pressure tank into the atmosphere (supersonic flow). I do not understand the effect of the Courant number on the time step.
Fluent uses the Courant number to control the time step if the eigenvalues become too small. I tracked the time step using the statistics option and did not see any changes in the time step, but Co has a large effect of the result.
The strange result is that a larger Co gives more stable results that I think are better.
How can a larger Co help?
|courant, density solver|
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