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March 30, 2013, 11:07
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Drag on airfoils
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#1 |
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New Member
Gary
Join Date: Mar 2013
Posts: 1
Rep Power: 0  |
Hi there,
I’m new to using fluent however I am trying to analyse various NACA airfoils under water and determine their drag coefficients. My question is, when you gain a drag force when the simulation has complete, is this purely from form drag or is friction drag accounted for? I have not included a surface roughness in the analysis. Any help and advice is greatly appreciated. |
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March 31, 2013, 15:07
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#2 |
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New Member
mohammed mahdi
Join Date: Jan 2010
Location: Sudan, Khartoum
Posts: 8
Rep Power: 16 |
yes this value represents the total drag force
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April 2, 2013, 06:52
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#3 |
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New Member
Mohammed
Join Date: Feb 2013
Posts: 12
Rep Power: 13 |
The friction drag is usually very small, however, FLUENT calculates all drag forces into one called the drag force.
Depending on your case, you can basically assume a small percentage for friction. |
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