WindTurbine simulation

[Zollhafen]

Hello everyone,

I am configuring a setup for a WindTurbine simulation, with precalculated aifoilpolars and contours.
I already know that this is possible through the validation studies made by Ed Alvarez.

For the WEA the suction and pressure side of the rotor need to be reversed compared to the classical case. But would this mean I also need to inverse the calculation of lift or C_l?

You see I am encountering some issues because I am not yet completely familiar with the calculation process in the rVPM.

Before diving into it I wanted to check if someone has already successfully put FLOWUnsteady in "Power generation" mode and can pinpoint at what locations I need to make adjustments or if there are already implemented parameters that adjust the solver to this.

Thank you and best regards

[Lullaby-star]

Hi Zollhafen,

I'm also quite new to using FLOWUnsteady for wind turbine simulations and am facing some issues with setting up the simulation. Did you succeed in setting up this simulation? If yes, could you please share the .jl file you used or perhaps help me set up a new one?

The main problem I'm encountering seems to be related to the turbine_flag and geometry generation. I've set both the CW_flag and the turbine_flag to true, but the geometry I get appears incorrect: the leading edge (LE) of the lattice is not facing the flow, and at the root, the elements collapse.

After several attempts, I managed to create a correct geometry, but only by setting the turbine_flag to false and the CW_flag to true (I compared the lattice I obtained with the one shown in QBlade). However, I think this approach is completely wrong because it treats the turbine as a propeller.

Thank you in advance for your help.

Best regards