Numerical simulations of two-dimensional flows around a vertical axis type wind turbine are investigated. The turbines studied in this paper are the Savonius turbine and the cross-flow turbine of twelve blades. The governing equations are the incompressible Navier-Stokes equations. A rotational coordinate system, which rotates at the same speed of the turbine, is used in order to simplify the boundary conditions on the blades. Additionally, a boundary fitted coordinate system is employed in order to express the shape of the blades precisely. The fractional step method is used to solve the basic equations. A third order upwind scheme is chosen for the approximation of non-linear terms. The results are compared with experiments and agreements are reasonable.
CITATION STYLE
Kawamura, T., & Sato, Y. (2003). Numerical Study of the Flow Around the High-torque Wind Turbine of Vertical Axis Type. In Computational Fluid Dynamics 2002 (pp. 649–654). Springer Berlin Heidelberg. https://doi.org/10.1007/978-3-642-59334-5_98
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