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Problem in getting mesh independent soluiton for flow over flat plate

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Old   November 26, 2012, 14:58
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Originally Posted by BHE View Post
Thankyou for your reply....

It is reporting me a value of Nux but not the correct one although its giving me correct values of hx and Cfx on the same Points along the Plate for the same mesh.
Fluent also uses the reference length to normalize the heat transfer coefficient to arrive at Nusselt number. You can't get Nux only NuL from the simple reports. Again, you can cross-compare but it looks like your code is working.
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Old   January 31, 2013, 00:03
Default grid independence studies
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I am working on semi-confined jet impingement cooling. My impingement surface (bottom of cylinder) is at 3mm from the nozzle exit (vertical jet)and at 600k. When I do grid independence studies , the nusselt number value at stagnation keeps increasing as the mesh gets finer. I plot - nusselt number vs radial distance.
Coarse mesh gives better result than finer mesh. How to get stable values!
Need Help!!!
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