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Seminar - Inverse Design: Thermal Management and Control by Professor George Huang
日期:2017 年 05 月 05 日 ( 星期五)
Time:11:00 am – 12:00 pm
Venue:EF305

Abstract:

Using fuel as a heat sink to manage and control the thermal endurance of aircraft is an area of interest from a fundamental point of view. First, the topology of the fuel line not only can affect the efficiency of the heat release but also can be designed to respond quickly to the change of the environmental heat load conditions. Second, the problem is an inverse design one in which the solution is generally known by the requirements of the aircraft and the design or/and control strategies are optimized to give the best desired solution. In the current work we shall focus on the dynamic optimal solution of the differential equations governing the heat transfer of recirculated fuel flows for the single and dual tank arrangements. It has been observed that the dual tank arrangement can store and release energy faster than the single tank case. Finally, the adjoint method is shown to be a subset of the current solution method and the linear quadratic regulator, the feedback controller, can be derived by linearizing the adjoint equations against the trim point to offer a simple control strategy which can be implemented directly in the feedback control hardware.

Bio-sketch:

Prof. George Huang is Professor and Chair in the Department of Mechanical and Materials Engineering at Wright State University (WSU). He did his undergraduate degree at Chung Yuan University in Taiwan, MS in Canada (McGill University) and PhD from Manchester, England (UMIST). After finishing his PhD in 1986, Dr. Huang joined Michigan Technology University as an Assistant Professor in the Department of Mechanical Engineering. In 1989, he moved to California to join NASA-Ames to pursue his interests in high-speed flow research related to the National Aero Space Plane (NASP). After seven years at NASA, he joined the Department of Mechanical Engineering at the University of Kentucky as an Associate Professor and was subsequently promoted to full Professor in 2002. In 2006, Dr. Huang joined Wright State University as the Chair of Mechanical and Materials Engineering Department.