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working on heat sink , the problem is how to get h ( convection coeff)

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Old   September 3, 2019, 12:24
Default working on heat sink , the problem is how to get h ( convection coeff)
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sangjeong
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hi guys so I'm working on a project where I'm comparing several heat sinks to find the best one .

I've watched alot of youtube videos but one thing that I noticed was all the guide videos , they put constant # for convection coeff.

If I recall correctly from heat transfer course, that coeff should be calculated using some sort of equation that is based on experiment?

is there anyway ANSYS can calculate the coeff ?

thanks in advance
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Old   September 4, 2019, 11:04
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Bruno Margotto
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Hey!

You're trying to estimate the convection heat transfer coefficient? Or just compute multiple simulations?

1) If you want to estimate:
-Try to search for inverse heat problems;
-There are nummerous techniques for it;

2) Otimization:
-Try to use MATLAB x ANSYS Fluent coupling;
-With MATLAB, you should implement the otimization technique you want;
-With ANSYS Fluent, you will generate your resutls for comparison;

Hope this help
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