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February 25, 2005, 10:53 |
calculate cp
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#1 |
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Hi all, I would like to calculate cp along a flat plat. I have tried to do this by load pressure,static pressure and total pressure for the boundary and calculated cp=(pressure-pstatic)/(ptot-pstat)
This seems not to be a good idea. It looks to me that pstat and ptot are equal. Can anybody advice me, how to calculate cp? Thanks. |
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March 2, 2005, 21:58 |
Re: calculate cp
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#2 |
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Hello
I believe at the wall pstatic is ptot because the velocity is zero. ptot = pstatic + 1/2*rho*V**2 I believe you need to do Cp = (p-p_infinity) / 1/2*rho_infinity*V_infinity**2 The p in the above equation is from the getc p command and the infinity values are a constant based on the free stream. |
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