Learning Forum

[chavescandinho]

Hi everyone!

I'm trying to plot the pressure coefficient graph at specific section of my horizontal axis wind turbine rotor using the function Cp Polar Plot in ansys post-processing, but the reference value for the velocity used to calculate the dynamic pressure is set to inlet velocity, but the speed of the wind turbine blades changes locally due to rotation, is there a way I can change the Cp Polar Plot function to consider specific velocities I define?

[jcooper]

 

Hi!

According to the user manual, the dynamic pressure can potentially be changed.  To do this, go to the Named Expressions that are created by the macro and edit the dynHead expression to evaluate Density and Velocity at a location that is more suitable for your analyis:

 

The Fluent Named Expressions generated by the macro can be found here:

 

[chavescandinho]

It worked, thanks