Studies on A Horizontal Axis Wind Turbine With Passive Pitch-Flap Mechanism (Performance and Flow Analysis Around Wind Turbine)  

Oleh:

Shimizu, Yukimaru ; Kamada, Yasunari

Jenis: Article from Bulletin/Magazine
Dalam koleksi: Journal of Fluids Engineering vol. 123 no. 3 (2001), page 516-522.
Topik: flow analysis; horizontal axis; wind turbine; mechanism; performance; flow analysis

Ketersediaan

Perpustakaan Pusat (Semanggi) Nomor Panggil: JJ89.2 Non-tandon: 1 (dapat dipinjam: 0) Tandon: tidak ada

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Isi artikel

This paper describes the development of a passive system to control the output power of a horizontal axis wind turbine. This pitch - flap coupling mechanism can reduce rotor power above rated wind speed. This mechanism has two kinds of blade motions : the flapping and the pitching motions. In this paper, braking effects are investigated experimentally. It is found that the breaking effect is improved when the ratio of pitch to flap motions is large. Also, the flow pattern around the wind turbine is investigated. It is found that the braking effects are caused by a couple of ring vortices.

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