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Units in 2D analysis

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Old   March 5, 2019, 09:27
Default Units in 2D analysis
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crinoid
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Hi,
When using Fluent with a 2D mesh, the results which are shown are per unit of length?
I am studying the heat transfer between some tubes in cross-flow with cold air and Fluent computes the pressure drop (pa) and heat exchange (w). Do I have to multiply those numbers by the length of my tubes?
Thanks in advance
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Old   March 5, 2019, 23:57
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Behrooz Jamshidi
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Hi,
The answer of your question is completely dependent on the result variable definition and derivation. For example the pressure drop in cross flow is not dependent on the length of tubes while heat exchange is dependent and the value is calculated per unit of length and must be multiplied by the length of tubes.
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Old   March 6, 2019, 05:21
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crinoid
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Sounds logic, thank you for your answer!!
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Old   March 6, 2019, 09:57
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Moritz Kuhn
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Some values like volume, flow rate and volume integrals are calculated with the Reference Depth in a 2D-analysis, which you can change under "Setup" and "Reference Values"
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Old   March 7, 2019, 08:14
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crinoid
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Ok, thanks!!
Would it be possible that the heat flux was express per units of area (considering pi * diameter * 1 m)?
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Old   March 7, 2019, 08:43
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Moritz Kuhn
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By default settings yes.
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