Experimental investigations on friction drag reduction on an airfoil by passive blowing

Shiho Hirokawa, Kaoruko Eto, Koji Fukagata, Naoko Tokugawa

研究成果: Conference contribution

抜粋

Friction drag reduction effect of a passive blowing on a Clark-Y airfoil is investigated. The passive blowing is conducted by the pressure difference on a wing surface between suction and blowing regions. The suction and the blowing regions are respectively set around the leading edge and the rear part of the upper surface. The Reynolds number based on the chord length is 0.65×106 and 1.54×106. The angle of attack is set to 0? and 6?. The mean velocity profiles on the blowing region and the downstream are shifted away from the wall by the passive blowing. This behavior qualitatively suggests local reduction of skin friction on the wing surface. As a result of the quantitative assessment, which takes into account the effects of pressure gradient and the roughness of the wall, the local friction drag reduction effect of passive blowing is estimated to reach 4% - 23%.

元の言語English
ホスト出版物のタイトルFluid Mechanics
出版者American Society of Mechanical Engineers (ASME)
ISBN(電子版)9780791859025
DOI
出版物ステータスPublished - 2019 1 1
イベントASME-JSME-KSME 2019 8th Joint Fluids Engineering Conference, AJKFluids 2019 - San Francisco, United States
継続期間: 2019 7 282019 8 1

出版物シリーズ

名前ASME-JSME-KSME 2019 8th Joint Fluids Engineering Conference, AJKFluids 2019
1

Conference

ConferenceASME-JSME-KSME 2019 8th Joint Fluids Engineering Conference, AJKFluids 2019
United States
San Francisco
期間19/7/2819/8/1

ASJC Scopus subject areas

  • Fluid Flow and Transfer Processes

フィンガープリント Experimental investigations on friction drag reduction on an airfoil by passive blowing' の研究トピックを掘り下げます。これらはともに一意のフィンガープリントを構成します。

  • これを引用

    Hirokawa, S., Eto, K., Fukagata, K., & Tokugawa, N. (2019). Experimental investigations on friction drag reduction on an airfoil by passive blowing. : Fluid Mechanics (ASME-JSME-KSME 2019 8th Joint Fluids Engineering Conference, AJKFluids 2019; 巻数 1). American Society of Mechanical Engineers (ASME). https://doi.org/10.1115/ajkfluids2019-5068