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Old   February 11, 2011, 19:06
Default Flow over a cylinder.
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Ugly Kid Joe
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Hello,

I am simulating a 2-D flow over a stationary cylinder to determine the Cl and Cd over the cylinder. My question is in the lift coeff formula i.e Cl=F/(0.5*density*U^2 *Area), the area is the projected area i.e length*diameter or the surface area (2*pi*radius*length) ???

Also what values should I put for Depth, Enthalpy, Ratio of Sp. heat in the reference values tables ???

Is the depth same as diameter of the cylinder ???
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Old   February 14, 2011, 02:43
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Maxime Perelli
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http://en.wikipedia.org/wiki/Lift_coefficient
check especially 2d section.
Formula for Lift coefficient doesn't involve Enthalpy etc.. so you are not suppose to set those parameters
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