Pressure Coefficient Cp

kid · September 13, 2011, 08:45

Hi,
For a 2D steady state, in-compressible "cylinder" flow Cp is calculated (OpenFOAM).
But when i try to plot it at all angles i am getting theoretical graph.
While i expect to get experimental graph.

Formula used for in-compressible Cp= 1- (Vo/Vinf)^2
Vo= Velocity at given theta
Vinf= Free stream Velocity

Please help, what should i do, to get graph matching to experimental Cp.

Cheers
CFDkid

kid · September 14, 2011, 01:49

helps guys

hfs · July 21, 2012, 23:33

Hello!

Did you get any answers??
I have the same case!

Help please

Regards,,,

niaz · July 22, 2012, 07:05

Dear kid
you mean that you write pressure around cylinder but you give result like theoretical?
can you explain more and show your pressure result?
in what manner do you write your result?

September 13, 2011, 08:45	Pressure Coefficient Cp	#1
kid Senior Member cfdkid Join Date: Mar 2009 Posts: 133 Rep Power: 17	Hi, For a 2D steady state, in-compressible "cylinder" flow Cp is calculated (OpenFOAM). But when i try to plot it at all angles i am getting theoretical graph. While i expect to get experimental graph. Formula used for in-compressible Cp= 1- (Vo/Vinf)^2 Vo= Velocity at given theta Vinf= Free stream Velocity Please help, what should i do, to get graph matching to experimental Cp. Cheers CFDkid

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September 14, 2011, 01:49		#2
kid Senior Member cfdkid Join Date: Mar 2009 Posts: 133 Rep Power: 17	helps guys

July 21, 2012, 23:33		#3
hfs Member Join Date: Jul 2012 Posts: 66 Rep Power: 14	Hello! Did you get any answers?? I have the same case! Help please Regards,,,

July 22, 2012, 07:05		#4
niaz Senior Member A_R Join Date: Jun 2009 Posts: 122 Rep Power: 17	Dear kid you mean that you write pressure around cylinder but you give result like theoretical? can you explain more and show your pressure result? in what manner do you write your result?