Characteristics of low-Reynolds number airfoils in a mars wind tunnel

Hiroki Nagai, Keisuke Asai, Daiju Numata, Tetsuya Suwa, Masayuki Anyoji

研究成果: Conference contribution

2 引用 (Scopus)

抜粋

The aerodynamic characteristics of thin airfoils at low Reynolds number were investigated in a Mars Wind Tunnel at Tohoku University. The lift and the drag of five airfoils (NACA 0012, 5% flat plate, 1% flat plate, 3% circular arc, 6% circular arc) were investigated by using a two-component balance system at Re=1.1×104 and Mach number about 0.2. Also, Pressure-Sensitive Paint technique was used to measure pressure distributions around the airfoils. The results obtained by the balance system show that The maximum lift to drag ratio of the 3% circular arc is the largest among the airfoils tested in this study. And the results of PSP measurement show that the lift slope becomes large where a bubble with relatively short length appears on the airfoil surface, and the thicker airfoil has longer separation bubble than the thin airfoil at the same angle of attack. Furthermore, the airfoil surface having large curvature, the range of angles of attack where the separation bubble exists becomes narrow because the appearance of a separation bubble by an increase of angle of attack is delayed.

元の言語English
ホスト出版物のタイトル51st AIAA Aerospace Sciences Meeting including the New Horizons Forum and Aerospace Exposition 2013
出版物ステータスPublished - 2013 8 19
イベント51st AIAA Aerospace Sciences Meeting including the New Horizons Forum and Aerospace Exposition 2013 - Grapevine, TX, United States
継続期間: 2013 1 72013 1 10

出版物シリーズ

名前51st AIAA Aerospace Sciences Meeting including the New Horizons Forum and Aerospace Exposition 2013

Other

Other51st AIAA Aerospace Sciences Meeting including the New Horizons Forum and Aerospace Exposition 2013
United States
Grapevine, TX
期間13/1/713/1/10

ASJC Scopus subject areas

  • Space and Planetary Science
  • Aerospace Engineering

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  • これを引用

    Nagai, H., Asai, K., Numata, D., Suwa, T., & Anyoji, M. (2013). Characteristics of low-Reynolds number airfoils in a mars wind tunnel. : 51st AIAA Aerospace Sciences Meeting including the New Horizons Forum and Aerospace Exposition 2013 (51st AIAA Aerospace Sciences Meeting including the New Horizons Forum and Aerospace Exposition 2013).