【航宇大讲堂】Laminar-Separation Bubble on a Cambered Thin Wing at Low Reynolds Numbers

作者:时间:2019-05-21浏览:674供图:审阅:来源:乐投Letou

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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:2019522日(周三)上午1030

所在:明故宫校区A18-209集会室

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.

报告人简介:

    陈肇麟,讲师,20097月和20144月在谢菲德大学划分获得硕士和博士学位,专业航行器气动设计与航行稳定性剖析 。20145-20154月受聘于原课题组为期一年的博士后科研事情 。20155201812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,盘算流体,工程算法程序开发),20191月入职乐投Letou交叉研究院 。目前研究偏向为低雷诺数层流疏散泡动态特性研究,螺旋桨-机翼气动滋扰,飞机总体气动设计与优化,以第一作者宣布SCIEI论文5篇 。

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