Efficiency-based design optimization of the H-type Darrieus wind turbine with fixed guiding-walls

Improving performance of H-Type NACA 0021 Darrieus rotor using leading-edge stationary/rotating microcylinders: Numerical studies

“…CFD-based optimization is a common tool to determine the best configurations or flow conditions in renewable energy applications [36]. It is widely adopted with several techniques aimed to vertical axis wind turbine optimization [45].…”

“…In the present study, the searching for optimum size and location of the microcylinder was first performed based on the optimization study of Ranjbar et al [45]. Optimization methodology is the discipline of fine-tuning an objective function which is dependent in nature on a particular set of parameters while remaining within a pre-stated set of constraints [36]. Different efforts using optimization methodology have been implemented to enhance the generated power of wind rotor including surrounding geometries [45].…”

“…They concluded that the three-blade turbine achieves a maximum Cp at the optimal TSR, which registered 14% and 23% power increments compared to the four-and five-blade turbines, respectively. Ansaf et al [36] performed CFD simulation and optimization using ANSYS Fluent to conduct the Efficiency-Based Design Optimization of an H-Darrieus VAWT coupled with fixed guiding walls surrounding its rotor at different tip speed ratios. Ansaf et al [36] noticed that among the parameters to control the configuration of fixed guiding walls, wind turbine performance is greatly affected by its design parameters.…”