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-   -   Warning: boundary Mach number exceeds maximum limit on pressure-outlet (http://www.cfd-online.com/Forums/fluent/114950-warning-boundary-mach-number-exceeds-maximum-limit-pressure-outlet.html)

Tarantino March 20, 2013 11:05

How to avoid reversed flow in ** faces on pressure outlet ***??
 
Ciao!

I have ran a case in HVAC system with multi outlets. I got the warning "reversed flow in *** faces on pressure outlet" in two outlets. the residuals are straight horizontal and the didn't fall below 1e-1. So the results are not converged. How can I fix the problem to got a converge solution? I am wonder if this back flow is one of the reason that I cannot got converge or not? How can I avoid Back-flow? I refine the mesh, but still the same problem.
Ps: inlet set as mass flow inlet, outlets are set as outlet-vent or pressure outlet.

Thanks.

Tarantino March 22, 2013 22:30

Hello!

Please, give me any suggestion to avid back flow, I stuck in this situation.


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