题目:Laminar-Separation Bubble on a Cambered Thin Wing at Low Reynolds Numbers
报告人:陈肇麟 博士(航空学院航空航天交叉研究院)
时间:2019年5月22日(周三)上午10:30
地点:明故宫校区A18-209会议室
主办单位:科协、航空学院、航空航天交叉研究院
报告内容摘要:
The characteristics of airfoil aerodynamics at low Reynolds numbers have become of interest in conjunction with the emergence of micro air and underwater vehicles. Often, the motion of such vehicles experiences an unsteady condition. According to boundary layer studies, the flow field at low Reynolds numbers, typically less than 100,000 based on the chord length, involves transition from laminar to turbulent flow. Especially, at a Reynolds number between 30,000 and 70,000, it is usually for reattachment to occur on the airfoil surface with formation of a laminar separation bubble (LSB). In the current talk, both two- and three-dimensional laminar-separation bubbles on a cambered thin airfoil/wing with a Reynolds number of 60,000 have been investigated. The aerodynamic forces are compared with the experimental data. The dynamic characteristics of the laminar-separation bubble will be discussed, and the interaction between LSB and the wing-tip vortex is also included, the difference between two- and three-dimensional LSB were made.
陈肇麟,讲师,2009年7月和2014年4月在谢菲德大学分别获得硕士和博士学位,专业飞行器气动设计与飞行稳定性分析。2014年5月-2015年4月受聘于原课题组为期一年的博士后科研工作。2015年5月2018年12月入职DencoHappel FlaktGroup 集团工程部从事透平机械设计(主要包括飞机螺旋桨气动设计和优化,船舶动力螺旋桨设计,计算流体,工程算法程序开发),2019年1月入职南京航空航天大学交叉研究院。目前研究方向为低雷诺数层流分离泡动态特性研究,螺旋桨-机翼气动干扰,飞机总体气动设计与优化,以第一作者发表SCI、EI论文5篇。