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-   -   Pressure coefficient (http://www.cfd-online.com/Forums/fluent/39513-pressure-coefficient.html)

 Giuseppe February 4, 2006 06:07

Pressure coefficient

Hello to all,

I have studied, with Fluent, the problem of flow past a circular cylinder in a uniform stream and I have plotted in XY graphics the pressure coefficient vs position(m). I have obtained two curves, one for the upper surface and one another for the lower surface!

The questions are:

1) The direction of the pressure coefficient is orthogonal to the cylinder surface?

2) How can I plot the pressure coefficient distribution only for the upper surface and only for the lower surface, in two separate graphics?

3) How can I plot, in Fluent, the pressure coefficient vs angle?

Thanks a lot

 itoalberti July 24, 2015 11:03

You can create an Iso-clip located on the cylinder wall and with visibility criteria of y>=0 if you want to plot only for positive y
Also, I've tried to plot Cp x theta but haven't found any help on that, so I'm taking that it's not possible to do that on Ansys. I'm using Excel to transform from Cartesian to cylindrical coordinates...

 Martin_Sz July 26, 2015 03:19

you can try tutorials which I gather on my blog