Hotwire Measurement and Numerical Analysis of Flows around a Straight Wing Vertical Axis Wind Turbine

• SATO Yuko

  Ochanomizu University, IT Center

• OKAZAKI Hironari

  東北大学大学院 工学研究科

• SHODA Tatsuya

  東北大学大学院 工学研究科

• NISHIO Yu

  東北大学大学院 工学研究科

• SHIGETA Masaya

  東北大学大学院 工学研究科

• IZAWA Seiichiro

  東北大学大学院 工学研究科

Bibliographic Information

Other Title

• 直線翼垂直軸風車周りの流れの熱線計測と数値解析

Abstract

This paper describes the analysis of flows around a straight wing vertical axis wind turbine. Hotwire measurements in two-dimensional wind tunnel and numerical simulations are conducted. The rotor has two blades, whose airfoil is NACA0012 and the chord length is 0.1 of the rotor diameter. Reynolds number based on the uniform velocity and rotor diameter is 8.0 × 10⁴. The tip speed ratio is 2.0. Incompressible Navier-Stokes equation is used for numerical simulation. A rotating coordinate system, which rotates at the same speed of the rotor, is employed. Both the experimental and numerical results are compared. As a result, the velocity fields show good agreements at each rotation angle, and the aerodynamic torque varies according to the flow condition, especially the flow separation.

Journal

• TRANSACTIONS OF THE JAPAN SOCIETY OF MECHANICAL ENGINEERS Series B

  TRANSACTIONS OF THE JAPAN SOCIETY OF MECHANICAL ENGINEERS Series B 77 (775), 637-646, 2011

  The Japan Society of Mechanical Engineers

Keywords

• Straight Wing Vertical Axis Wind Turbine
• Flow Measurement
• Numerical Simulation

Details

• CRID: 1390001206261860992
• NII Article ID: 130000873976
• DOI: 10.1299/kikaib.77.637
• ISSN: 18848346
• ISSN: 03875016
• Web Site: http://www.jstage.jst.go.jp/article/kikaib/77/775/77_775_637/_pdf
• Data Source:
  • JaLC
  • Crossref
  • CiNii Articles
  • KAKEN
• Abstract License Flag: Disallowed