CFD Online Discussion Forums - Why Cp distributions and static Pressure distribution are same?

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paraglider

November 7, 2013 05:08

Why Cp distributions and static Pressure distribution are same?

Hi everyone.
I'm making 2D cfd analysis of a paraglider.
I tried lots of solution methods but interestingly my Pressure Coefficient distribution and my static pressure distribution are %99 same. Is there anyone who has any idea about this?
Thank you for your answers.

tarjeiba

November 7, 2013 08:53

Hi,

With the pressure coefficient defined as $C_p = \frac{p- p_\infty}{\frac{1}{2} \rho_\infty V_\infty ^2 }$ , wouldn't you expect to find that this follows the same development along the airfoil as the static pressure (

) does? (As far as I can see, all the other variables are constants for a given flow.)

paraglider

November 8, 2013 09:55

I see. I think I had I problem with my Pinfinte value.Thank you

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