[ferroburak]

Hi,
Instead of iterating a fixed amount of times in Fluent, I want to iterate till a condition (say, Pnew - P, difference between inlet and exit pressures, less than 1e-3) is satisfied. Is this possible with Fluent?

Thanks.

[LuckyTran]

Originally Posted by ferroburak

Hi,
Instead of iterating a fixed amount of times in Fluent, I want to iterate till a condition (say, Pnew - P, difference between inlet and exit pressures, less than 1e-3) is satisfied. Is this possible with Fluent?

Thanks.

It might be possible. In the convergence manager, you can set additional convergence criteria (found in the monitors tab of the GUI). However, the only criteria supported is iterate until monitor is less than a set stopping criteria. You cannot for example set an asymptotic criteria or standard deviation as a criteria.

These additional convergence checks can only be applied to existing surface/volume monitors. You would need to think of a creative way to make a monitor that represents the desired difference in pressures. The worst case, you would need to use a udf to create a new variable which could be monitored and used as the convergence criteria.