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Divergence Error in my Simulation

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Old   July 2, 2014, 04:15
Exclamation Divergence Error in my Simulation
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Utsav Jain
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Hey Guys,

I need help with this problem. I am doing a simple internal flow simulation for nozzle. Actually there are two nozzles. One is a simple De Laval nozzle and other is a De Laval Nozzle with several cuts (chevrons) at the end.

The first type of nozzle was simulated perfectly. But putting the same conditions for the chevron nozzles (nozzle with triangular cuts at the outlet), it is showing divergence while iterating.

Please give me a good solution to this. I am using FLUENT in ANSYS Workbench. Geometry is made in Solidworks and I am using course mesh. The message of divergence is obtained at 600-700th iteration.

Thank you

Last edited by utsavac; July 2, 2014 at 04:45. Reason: More Information
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