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-   -   how to limit the variable in CFX interation? (http://www.cfd-online.com/Forums/cfx/92720-how-limit-variable-cfx-interation.html)

CFD_D_BOY September 23, 2011 01:39

how to limit the variable in CFX interation?
 
Does CFX have the function which woud define the range of some variation(or the Max/Min Valve ) to avoid large oscillation in iteration?

As Fluent has a funtion called "limit" in the menu.

ghorrocks September 23, 2011 07:37

Do you mean putting thresholds on allowable variable values? This is almost always a bad idea, the root cause of the problem is poor convergence and you should fix that rather than putting an artificial limiter on. Limiters make convergence even harder.


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