[baccus]

Hi everyone,

I am running a transient heat transfer simulation. I looked for but can't find a solution that satisfies me.

In solution settings, I have options to set both Courant # and time step size seperately. Considering my constant velocity, constant mesh size and CFL equation ( CFL#= V*deltat / deltax ); time step size and CFL number should be related. If I enter irrelevant values for them, which parameter is used by the software ?

It is similar to the question that; if I can enter time step size, why there is an option to set CFL or vice versa? (for fixed mesh and velocity)

[vinerm]

Refer the following

wrong solution at LOW CFL number

[baccus]

Thanks. Now I got the difference.