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How to select Ref. Temperature in reference values

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Old   August 19, 2017, 16:39
Default How to select Ref. Temperature in reference values
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Hello I am attempting to evaluate Nuavg for a wall with fixed temp in a square cavity. I tried with surface integral>Area weighted average>Wall fluxes>surface nusselt number and I aware that prediction of Nuavg depend on reference temp actually I am not sure how I can set the reference temp? I tried several values but it not give me the expected Nuavg? I am really confused about that? any reply please?

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Old   August 20, 2017, 14:38
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Nobody know to answer my question?

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Originally Posted by mariam.sara View Post
Hello I am attempting to evaluate Nuavg for a wall with fixed temp in a square cavity. I tried with surface integral>Area weighted average>Wall fluxes>surface nusselt number and I aware that prediction of Nuavg depend on reference temp actually I am not sure how I can set the reference temp? I tried several values but it not give me the expected Nuavg? I am really confused about that? any reply please?

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