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expression for calulation of average nusselt number in cfx |
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December 8, 2015, 17:14 |
expression for calulation of average nusselt number in cfx
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#1 |
New Member
mehran
Join Date: Dec 2015
Posts: 10
Rep Power: 11 |
dear friends,
would u do me a favor, i realy stoped whit a problem, i do not know exactly how i can create a expression for average nusselt number, somebody says it like below but i still could not understand their meaning: Replace nuL= (Wall Heat Flux *shoa*2[m])/(75 [K]*Thermal Conductivity ) with nuL = areaAve(Wall Heat Flux)@Wall * shoa ..... * areaAve(k)@Wall could u send me the complete expression of average nusselt number? (whit obvious explanation so that i could apply it) i want to use this in double pipe heat exchanger Thanks in advance. |
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December 8, 2015, 17:46 |
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#2 |
Super Moderator
Glenn Horrocks
Join Date: Mar 2009
Location: Sydney, Australia
Posts: 17,862
Rep Power: 144 |
You better understand what Nusselt number is first before you try to derive an equation to calculate it. Have a look in a heat transfer textbook.
And please do not spam me with private messages which are exact copies of posts on the forum. I do not like that. |
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