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September 19, 2012, 19:52
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Time step reduction
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Senior Member
navid
Join Date: Jan 2010
Posts: 110
Rep Power: 16  |
Hi,
I have a weird problem in my unsteady VOF simulation. when I use variable time stepping and use CFL=0.5 my simulation is OK. But when I change CFL to 0.1 to have smaller time steps, I see oscillations in my solution which is the pressure. Does anyone know reducing CFL (or Time step) further than a specific amount can inversely affect the solution? Thank you, |
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