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Forum: CFX

August 22, 2012, 07:37

Replies: 6

Adaptive Timestep and Residuals

Views: 2,704

Posted By ghorrocks

OK, you are just running it until it converges as...

OK, you are just running it until it converges as far as it can.

The transient residual contains a transient term which obviously the steady state one does not.

The SAS-SST model is a transient...

Forum: CFX

August 22, 2012, 07:14

Replies: 6

Adaptive Timestep and Residuals

Views: 2,704

Posted By ghorrocks

Sensitivity analysis on physical time step size...

Sensitivity analysis on physical time step size for a steady state run is pointless. The only thing which matters is how tight the convergence is. The time step is just a means to achieve...

Forum: CFX

August 22, 2012, 06:42

Replies: 6

Adaptive Timestep and Residuals

Views: 2,704

Posted By ghorrocks

You cannot do time scale sensitivity on a steady...

You cannot do time scale sensitivity on a steady state run. It has to be done on a transient run. Doing mesh sensitivity on a steady state run sounds OK. But if you use adaptive time stepping that...

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