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July 23, 2011, 05:53 |
How to plot pressure Coef.???
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#1 |
Senior Member
mohammad
Join Date: Dec 2010
Location: UK
Posts: 245
Rep Power: 16 |
Hi guys;
I have a question . I'm working on a CFX model of a wind turbine. I have got some results and now I want to plot the Cp. be cause the blades is tapered and has a twist angle and so different AOA at different radial positions , I want to know that which coordinate system should i choose for plotting the pressure coefficient. Global x direction or I MUST choose local one with the "X" axis along the chord length.???? Please pay attention that if I use Global coordinate system when I have AOA, two point at the same Global X position don't have the same local X positions??? and the Cp always is plotted according to "x/C"....but which "x"?:help: See the attached picture and see what I mean for the effect of rotation...plz |
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