Hello fellow researchers,
I am currently engaged in a 2D simulation of a three-blade vertical axis wind turbine using CFD Fluent, incorporating sliding mesh simulationI. I have conducted various simulations at different RPMs, and upon calculating the average torque from the torque R-plot file, I observed that the average torque is consistently negative, indicating a counterclockwise blade movement.
Specifically, I performed simulations at 20 RPM, 53 RPM, 83 RPM, 101 RPM, 120 RPM, and 137 RPM, all with a constant initial velocity of 10 m/s. Notably, only the first two simulations at 20 RPM and 53 RPM yielded positive average torque values, while the remaining simulations showed negative average torque.
I am reaching out for your valuable suggestions regarding potential mistakes in my approach. Your insights would be greatly appreciated.
Hello hanif,can you share the meshing details....meshing is one of the factor for negative torque result...
Yes, kindly check out the attached picture for the mesh details.
Thank you.
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