Aerofoil lift coefficient

plm · December 5, 2011, 10:34

Hi,
Does anybody understand how the OF libforces.so package actually works out the values of lift and drag coefficient?

plm

plm · December 7, 2011, 06:58

I'll be more explicit; I'm comparing computational results to experiment and I'm getting a very good approximation for the lift coefficient but not a very good approximation to the pressure distribution on the aerofoil....

I can't understand how this is correct?

I thought it might be something to do with how OpenFOAM works out the actual lift coefficient but from what I understand, openfoam does indeed just integrate the pressure distribution.....

Does anybody have any experience with this and could they point me in the right direction?

December 5, 2011, 10:34	Aerofoil lift coefficient	#1
plm New Member RW Join Date: Nov 2011 Posts: 22 Rep Power: 15	Hi, Does anybody understand how the OF libforces.so package actually works out the values of lift and drag coefficient? plm

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December 7, 2011, 06:58		#2
plm New Member RW Join Date: Nov 2011 Posts: 22 Rep Power: 15	I'll be more explicit; I'm comparing computational results to experiment and I'm getting a very good approximation for the lift coefficient but not a very good approximation to the pressure distribution on the aerofoil.... I can't understand how this is correct? I thought it might be something to do with how OpenFOAM works out the actual lift coefficient but from what I understand, openfoam does indeed just integrate the pressure distribution..... Does anybody have any experience with this and could they point me in the right direction?