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January 11, 2011, 21:13
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Nusselt Number
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#1 |
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New Member
Junling Xie
Join Date: Jan 2011
Posts: 3
Rep Power: 16  |
I use Fluent to analyze flow in a flat duct. After calculation, I wanna get Nusselt Number.I have try to get the surface Nusselt number from the plot>xyplot,choose y axis function with wall fluxes, and get the surface Nusselt Number under wall fluxes, but is seems weird. The surface Nusselt Number always appears zero.
After I get the Nusselt Number, I wanna plot the Nusselt Number with X*(dimensionless axial coordinate for the thermal entrance region) How can I get this plot.Please tell me. Thx all. |
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January 12, 2011, 23:19
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#2 |
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New Member
Junling Xie
Join Date: Jan 2011
Posts: 3
Rep Power: 16 |
Can anyone give me some information?
Thanks |
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January 14, 2011, 13:30
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#3 |
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Senior Member
Andrew
Join Date: Mar 2009
Location: Washington, DC
Posts: 211
Rep Power: 19 |
I think you might be getting zero because your two temperatures are equal, thus giving a zero 'h'. I would think that you can find the local convective coefficient and then calculate Nu...maybe
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