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Showing results 1 to 5 of 5 Search took 0.00 seconds. Search: Posts Made By: Nick R

Forum: CFX December 16, 2011, 19:57

Replies: 12 When to switch from steady-state to transient Views: 5,745 Posted By Nick R Ghorrocks- I wrote once convergence is achieved... Ghorrocks- I wrote once convergence is achieved try increasing the timestep otherwise (if not achieved) decrease it. I think this is accurate in a transient solution.

Forum: CFX December 15, 2011, 19:41

Replies: 12 When to switch from steady-state to transient Views: 5,745 Posted By Nick R I would suggest starting with a very small... I would suggest starting with a very small timestep and watching the convergence behavior for a few time steps. If convergence target is achieved then try increasing the time step; otherwise you need...

Forum: CFX April 7, 2011, 21:13

Replies: 12 When to switch from steady-state to transient Views: 5,745 Posted By Nick R :) I see. I'll give it a shot. Thanks. :) I see. I'll give it a shot. Thanks.

Forum: CFX April 7, 2011, 11:55

Replies: 12 When to switch from steady-state to transient Views: 5,745 Posted By Nick R Thanks for your comments. Also I have a question... Thanks for your comments. Also I have a question about what to expect with the transient model. Let's say the mass residual starts to oscilate when it's at 10^-3 in the steady solver. Are the...

Forum: CFX April 6, 2011, 23:55

Replies: 12 When to switch from steady-state to transient Views: 5,745 Posted By Nick R When to switch from steady-state to transient Hi all, In a transitional simulation for a thick airfoil at a low Reynolds at a 4deg AOA number I find that residuals start to oscillate past a certain point. My guess is transient effects are...

Showing results 1 to 5 of 5

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