A DPIV study of the trailing vortex elements from the blades of a horizontal axis wind turbine in yaw
作者： I. Grant , P. Parkin
关键词: Vortex ring 、 Starting vortex 、 Physics 、 Mechanics 、 Vortex sheet 、 Trailing edge 、 Horseshoe vortex 、 Optics 、 Vorticity 、 Vortex 、 Wind tunnel
摘要: Digital particle image velocimetry (DPIV) has been used in a wind tunnel study to measure the velocity field of trailing vortices from blades horizontal axis wind-turbine (HWAT) yaw. The creation vortex circulation is shown vary as function phase angle rotor and yaw between turbine rotor. strength convecting vorticity was also with time. initial formation determined by flow expansion while yawed flows developing then influenced sheet shed inboard blade edge. This interaction significantly affect roll up tip vortex.
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