# Numerical Simulation of Interaction between Two Wind Turbines of Vertical Axis

67 ( 2 )  , pp.33 - 41 , 2017-02 , お茶の水女子大学
NII書誌ID(NCID):AN00033958

Two-dimensional flow around two straight wing vertical axis wind turbines\(SW-VAWT) with two blades is investigated by means of the numerical simulation.\Special attention is paid for the interaction between two wind turbines. It is desired to\use rotational coordinate system in order to perform precise computations. Therefore,\we divide whole computational domain into several sub-domains two of which rotate\around the axis of each wind turbine. These sub-domains are embedded in outer\motionless domain. Incompressible Navier-Stokes equations are solved by the fractional\step method. The third order upwind difference is chosen for the approximation of\non-linear terms. Torque coefficients of two wind turbines are computed changing tip\speed ratio to see the interaction between them.

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