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Abstract In order to study the performance characteristics and the near wake of a model wind turbine, the three-dimensional effect in the spanwise direction on the airfoil surface flow of… Click to show full abstract
Abstract In order to study the performance characteristics and the near wake of a model wind turbine, the three-dimensional effect in the spanwise direction on the airfoil surface flow of the Horizontal Axis Wind Turbine (HAWT) was investigated in wind tunnel experiments. The HAWT model was a three-bladed upwind wind turbine with a rotor radius of R = 1.2 m. In this experiment, the pressure distribution was measured by a multiport pressure measurement device and the velocity characteristics of a HAWT rotor surface were measured by using an LDV system. Experiments were carried out at the optimal tip speed ratio of 5.2 in the three spanwise sections of r/R = 0.3, 0.5 and 0.7, respectively. It is discovered that the laminar separation bubble locates at the chord position of 0.3
Journal Title: Energy
Year Published: 2020
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