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March 5, 2019, 09:27 |
Units in 2D analysis
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#1 |
New Member
crinoid
Join Date: Jan 2019
Posts: 21
Rep Power: 7 |
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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March 5, 2019, 23:57 |
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#2 |
Senior Member
Behrooz Jamshidi
Join Date: Apr 2013
Posts: 110
Rep Power: 13 |
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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March 6, 2019, 05:21 |
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#3 |
New Member
crinoid
Join Date: Jan 2019
Posts: 21
Rep Power: 7 |
Sounds logic, thank you for your answer!!
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March 6, 2019, 09:57 |
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#4 |
Senior Member
Moritz Kuhn
Join Date: Apr 2010
Location: Germany, Dresden
Posts: 217
Rep Power: 17 |
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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March 7, 2019, 08:14 |
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#5 |
New Member
crinoid
Join Date: Jan 2019
Posts: 21
Rep Power: 7 |
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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March 7, 2019, 08:43 |
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#6 |
Senior Member
Moritz Kuhn
Join Date: Apr 2010
Location: Germany, Dresden
Posts: 217
Rep Power: 17 |
By default settings yes.
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Tags |
heat transfer, units |
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