CFD Tutorial 2 - How to find torque and Power in CFD Post

In this tutorial we have explained the method for determining the torque and power of turbo machinery in CFD Post 18.1
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[@user-mj5hg5dv8l]

You can create a "Surface Group" in CFD-Post, then you can choose the surfaces and make them together as one, after that you can calculate the torque in one time.

[@CFD_Mechanic]

thankyou

[@luccalus]

Thanks! Saved me a lot of time

[@rupeshkumar-pk2mp]

Well Explained. Could you tell me how to plot the torque for each time step in a transient simulation? Thank you.

[@ABCABC-vr2sl]

I have 2 questions. The first one is why we choose a hub , blades, leading and trailing edges??? and also can you show me exactly which one are these edges(I know what is trailing and leading edges)???
tanx

[@haydersakran5675]

Hi Mr. Sijal, I have tried to do the same procedure but I get this message " Error " cannot calculate force. variable ' pressure' does not exist.

[@syahmyhalmy6497]

Hi, im using ansys fluent for my savonius wind turbine. For 3 blade. Wind speed is 7m/s. And rad/s is 4. Is it normal to have the torque as negative?

[@CFD_Mechanic]

Yes. And it happens when vector direction is opposite

[@syahmyhalmy6497]

ANSYS CFD tutorials and courses and to find the torque coefficient, i just need to follow the calculation and step that you have show in the part 1?