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2015 年 07 月 17 日
Seminar - Experimental and Numerical Investigation of the Aerodynamic Control with Synthetic Jets at Low Reynolds number by Prof. Pierre E. Sullivan
Date:17 July 2015 (Friday)
Time:11:00 am – 12:00 pm
Venue:EF305, The Hong Kong Polytechnic University

Date: 17 July 2015 (Friday)

Time: 11:00 am – 12:00 pm

Venue:EF305, The Hong Kong Polytechnic University

Abstract:

Aerodynamic control of low Reynolds number flow using synthetic jet actuation is of interest to a wide range of applications including the design and operation of unmanned aerial vehicles (UAVs) at low speeds, separation control at the inlets of jet engines and the design of compressor blades. Periodic excitation introduced locally at the surface has shown the most promise as an efficient and practical means of flow control. Much work has been done to identify optimum frequency ranges for producing reattachment of a separated shear layer using synthetic jets. There are two distinct frequency bands which have received the most attention. The first range includes the dominant wake frequency, otherwise known as the shedding frequency fs, and the second range involves frequencies that are at least an order of magnitude higher than fs. The discussion will focus on experimental and numerical work focused on determining efficient control schemes based on flow interaction with synthetic jets.

Bio-sketch:

Prof. Pierre E. Sullivan is Professor at Department of Mechanical & Industrial Engineering, University of Toronto, Canada. He obtained his BSME (1988) and MSME (1990) degrees from Clarkson University at Potsdam, New York, USA in mechanical engineering. He earned his Ph.D. in mechanical engineering from Queen’s University at Kingston, Ontario, Canada in 1995. He started at the Department of Mechanical and Industrial Engineering in 1995 where he is now a full Professor. Prof. Sullivan has advised 17 Ph.D. and over 30 Master’s research students. He is the member of ASME, SAE, PEO, AIAA, and he was selected a CSME Fellow from 2012. His interest is in digital microfluidics, microscale jets and turbulence related to aerodynamic control at low Reynolds numbers. Prof. Sullivan has made over 100 scholarly addresses and conference presentations.