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Total Heat Transfer Rate & Total Surface Heat Flux Mismatch

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Old   November 24, 2009, 08:01
Default Total Heat Transfer Rate & Total Surface Heat Flux Mismatch
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Hi all,

This is my first post ever, let's see if I am lucky. I don't understand the mismatch between results from

#1. Flux Reports / Total Heat Transfer Rate and
#2. Surface Integrals / Report type: Integral / Total Surface Heat Flux

applied to a Wall that limites two solid regions. The thermal conditions for this wall and its shadow is coupled. The result in #1 makes sense from a qualitative point of view (-21 and 21 W, respectively wall and shadow) but doesn't for #2 (-13 and 5 [W/m2]*m2), meaning that not all the heat leaving the wall (13W) goes into its shadow (only 5W).

Could anyone give a hand? Thanks.

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heat transfer, wall

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