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航空学院青年学术论坛第123讲
2018-10-31 08:32   审核人:

报告题目:When Push Would Help

—— A message from the turbulent convection under spatial confinement

报 告 人:南方科技大学 黄仕迪副教授

邀 请 人:郗恒东教授

报告时间:11月2日(星期五)下午2:30~3:30

报告地点:航空楼A706会议室

报告摘要:

It is well known that a certain degree of stress or constraint can make people perform better and yield higher productivity; however, over-stress or too much constraint can lead one collapse down and perform poorly. Interestingly, similar phenomenon was observed in a turbulent system under spatial confinement. This system is calledRayleigh-Bénard convection, an idealized model for studying general convection phenomena in nature and industrial applications. Based on the classical picture of heat transport, if one would like to enhance the heat transfer efficiency, it is preferred to make the flow stronger and faster. In this talk, I will show that how heat transport can be significantly enhanced by using a simple spatial-confinement approach, despite that the overall flow is slowed down greatly. In this newly-discovered regime, both the global heat transport and the local temperature profiles exhibit universal properties, which are originated from the structure of the elementary heat carrier in the system. By examining the mechanism of the above phenomenon and making an interesting analogy, a message for that "when push would help to improve one's performance" is implied.

报告人简介:

黄仕迪,南方科技大学副教授,博士生导师。研究方向包括湍流热对流、水平对流、大洋环流动力学、自组织行为。于2009年获复旦大学物理系学士学位,之后在香港中文大学物理系获得博士学位,并相继进行博士后、Research Associate研究。2016年获香港青年科学家奖,2017年获得深圳市孔雀计划B类项目,同年入选第十三批“千人计划”青年项目。

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