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Calculating local heat transfer coefficient for Cylindrical fins

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Old   April 28, 2021, 23:47
Post Calculating local heat transfer coefficient for Cylindrical fins
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Karthikeyan Kurinjivanan
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Dear CFD-Online Fraternity,

I have a steady state heat transfer problem, where I cool a heat source (bottom) with flowing water(laminar) by the help of cylindrical fin arrays. I have an 8x8 array and an 8x1 array and I need to compare the local heat transfer coefficient, so that I can validate using an 8x1 instead of an 8x8 to reduce the computational effort needed for my simulation.

I need to calculate the local heat transfer coefficient (h) for the below shown systems. All I can do in ANSYS Fluent now, is to calculate the volume-averaged Surface heat transfer coefficient.

TempVol8x8Cyl35.jpg 2_TempVol_8x1Cyl35.jpg

Consider, in these geometries, each cell is 5mm x 5mm. (with a cylindrical fin in the centre of each cell as shown in the image below)


I would like to know how I can individually calculate the heat transfer coefficient for each cell, so that I can compare both the geometries.

Any leads are very much appreciated.

Last edited by karyan07; April 29, 2021 at 07:57.
karyan07 is offline   Reply With Quote


fins, heat exchanger, heat transfer coefficient

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