![]() RE: What method is used to calculate lift coefficient in QBlade BEM simulations? WindWright (Aerospace) 4 Sep 20 04:12 and I do not understand how or using which method QBlade calculates them.ĭoes anyone know the name of the theory for which QBlade use in order to create a "lift coefficient vs angle of attack" plot like the picture below? Or at least where can I read about them? I read Robert Gasch and Jochen Twele's book on Wind Power Plants but I do not find any info about producing these plots. I understand that lift coefficients will change when the turbine is rotating (as opposed to the stationary airfoil used in XFOIL simulations), but I still have never seen such plots. In fact, I have never seen a Cl vs alpha plot like the one produced by the BEM simulation submodule. These Cl vs alpha plots are different than the one produced by XFOIL. ![]() In both of these submodules, they can provide a "lift coefficient vs angle of attack" plot for every wind speed/TSR. ![]() QBlade has submodules named "Rotor BEM Simulation" and "HAWT BEM Simulation".
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