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-   -   Problem in fluent (http://www.cfd-online.com/Forums/fluent/92043-problem-fluent.html)

Harpreet August 31, 2011 10:03

Problem in fluent
 
Hi,
Please help
I have modelled a jet of air coming from a nozzle, striking a wall. Initially i had a coarse mesh, which after adaption i had refined. I am facing a problem that i supplied air at a velocity of 70m/s at inlet, but after iterations the max value shown at inlet level(the place i gave inlet velocity) is showing a value of 77m/s. i had again adapted the mesh, used second order upwind for the momentum calculation but still facing similar problem of overshooting of the inlet velocity.

stuart23 August 31, 2011 13:46

How did you define your inlet boundary condition? What about the outlet boundary condition?

Stu

Harpreet August 31, 2011 23:06

Inlet boundry condition was as "Velocity Inlet" at the inlet to the nozzle, and the outlet condition was set to "Outflow"


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