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Nu in CFX

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Old   June 13, 2017, 10:31
Unhappy Nu in CFX
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Ali karimi
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hey guys!

I wanna simulate a heat exchanger with internal and external flow, water flows inside pipe and air outside of it.

my problem is I don't know how to calculate Nu number. My reference paper used functions that attached for calculating Nu number
please someone help how to calculate Nu in CFX.

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