Magnetically-Damped Flows and Heat Transfer: Modeling and Measurements
讲座名称：
Magnetically-Damped Flows and Heat Transfer: Modeling and Measurements
讲座时间：
2010-12-28
讲座人：
李本强
形式：
校区：
兴庆校区
实践学分：
讲座内容：
应能动学院动力工程多相流国家重点实验室王秋旺教授邀请，美国密歇根大学(University of Michigan)迪尔伯恩分校机械工程系主任李本强教授(Prof. Ben Q. Li)将于12月28日下午在我院进行访问交流并举办学术讲座。
Title: Magnetically-Damped Flows and Heat Transfer: Modeling and Measurements
Abstract: Space processing of ultra-high purity single crystals utilizes the electromagnetic field to control and regulate the fluid motion and heat transfer to achieve optimal performance in terms of minimized dopant striation. This talk presents a fundamental study on magnetic damping of metal flows with and without the effect of an applied magnetic field as applied to terrestrial and extraterrestrial melt processing systems. Comprehensive numerical models are developed for the purpose of simulating electromagnetic and transport phenomena in the media with and without radiative transfer participating. The numerical models are based on the combined continuous and discontinuous finite element solution of the Maxwell equations, radiative transfer equations, Navier-Stocks equations and energy balance equations. Experimental measuring systems were developed where liquid gallium is used as working fluid. Flow measurements were taken by hot wire probes for certain configurations. The measurements of the detailed velocity field and temperature profiles are compared with those predicted by the numerical models. Good agreement is obtained between the two.
时 间：2010年12月28日下午3:00-4:00
地 点：东三楼 乙217 热流中心多媒体教室
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