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CrankNicolson discretization and Courant number |
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February 8, 2015, 07:08
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CrankNicolson discretization and Courant number
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Senior Member
Join Date: Jan 2015
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in book it's written that CrankNicolson method is unconditionally stable.
But using this method in icoFoam solver my solution after ~100 iterations explodes... Courant number is >60 at start and increasing (because I have an increasing transient inlet velocity). Yes, Courant number is big, but as I said before CrankNicolson method is unconditionally stable.. So what a problem with simulation ?? Maybe someone got such problem before. |
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| crank-nicolson, icofoam, openfoam 2.3.0 |
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