Inverse Design of Single- and Multi-Rotor Horizontal Axis Wind Turbine Blades using Computational Fluid Dynamics
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A method for inverse design of horizontal axis wind turbine (HAWT) is presented in this paper. The direct solver for aerodynamic analysis solves the Reynolds Averaged Navier Stokes (RANS) equations, where the effect of the turbine rotor is modeled as momentum sources using the actuator disk model (ADM).The inverse problem is posed as follows: for a given selection of airfoils, the objective is to find the blade geometry (described as blade twist and chord distributions) which realizes the desired turbine aerodynamic performance at the design point; the desired performance is prescribed as angle of attack (α) and axial induction factor (a) distributions along the blade. The method is first applied for conventional, single-rotor HAWTs and then extended to multi-rotor, specifically dual-rotor wind turbines.
This is a manuscript of a proceeding published as Behnam Moghadassian and Anupam Sharma. (2017) "Inverse Design of Single- and Multi-Rotor Horizontal Axis Wind Turbine Blades using Computational Fluid Dynamics", 35th Wind Energy Symposium, AIAA SciTech Forum. (AIAA 2017-1848). doi: 10.2514/6.2017-1848. Posted with permission.