The evolution of streamwise counter-rotating vortices in flat plate boundary layer with leading edge pattern

Seyed Mohammad Hasheminejad, Hatsari Mitsudharmadi, S. H. Winoto, Kim-Boon Lua, Hong Tong Low

研究成果: Conference contribution

摘要

The evolution of streamwise counter-rotating vortices induced by different leading edge patterns is investigated quantitatively using hot-wire anemometer. A notched and triangular leading edge with the same wavelength and amplitude were designed to induce streamwise vortices over a flat plate at Reynolds number (based on the wavelength of the leading edge patterns) of 3080 corresponding to free-stream velocity of 3 m/s. The streamwise velocity at different streamwise locations collected and analyzed using a single wire probe hot-wire anemometer showed reveal different characteristics of boundary layer flow due to the presence of these two leading edge patterns. The major difference is the appearance of an additional streamwise vortex between the troughs of the notched pattern. Such vortices increase the mixing effect in the boundary layer as well as the velocity profile.

原文English
主出版物標題Fluids Engineering Systems and Technologies
發行者American Society of Mechanical Engineers (ASME)
ISBN(電子)9780791857465
DOIs
出版狀態Published - 1 一月 2015
事件ASME 2015 International Mechanical Engineering Congress and Exposition, IMECE 2015 - Houston, United States
持續時間: 13 十一月 201519 十一月 2015

出版系列

名字ASME International Mechanical Engineering Congress and Exposition, Proceedings (IMECE)
7A-2015

Conference

ConferenceASME 2015 International Mechanical Engineering Congress and Exposition, IMECE 2015
國家United States
城市Houston
期間13/11/1519/11/15

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  • 引用此

    Hasheminejad, S. M., Mitsudharmadi, H., Winoto, S. H., Lua, K-B., & Low, H. T. (2015). The evolution of streamwise counter-rotating vortices in flat plate boundary layer with leading edge pattern. 於 Fluids Engineering Systems and Technologies (ASME International Mechanical Engineering Congress and Exposition, Proceedings (IMECE); 卷 7A-2015). American Society of Mechanical Engineers (ASME). https://doi.org/10.1115/IMECE201552897