Abstract
This paper explores the camber as a variable to parameterize the airfoil of a 3-blade H-shaped vertical axis offshore wind turbine (VAOWT). The influence of airfoil camber (f) on the aerodynamics of H-type VAOWT is investigated. Selecting $$v=4,8,12$$ m/s as the design conditions, and using NACA0015 airfoil ( $$f=0\%)$$ as the prototype to perform the parametric design of the airfoil. A total of 6 blades with the camber of $$f=[0\%,5\%]$$ are designed. A 2D-computational fluid dynamics (CFD) simulation model is established with ANSYS software. Taking the power coefficient ( $$C_\mathrm{p}$$ ), the high-performance tip speed ratio range ( $$\varDelta \lambda $$ ), and the power(P) of the offshore wind turbine as research objects, the aerodynamic law of VAOWT and the changes in torque, pressure, velocity of the airfoil surface under different azimuth angles are studied. The research results find that the camber has a great influence on the aerodynamic performance of vertical axis wind turbines. Airfoil with smaller camber ( $$f\in [0\%,2\%]$$ ) has a better aerodynamic performance.
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