时间：2018年6月13日15:00

地点：中以楼B201会议室

报告人：陈康平教授

简介：陈康平，美国亚利桑那州立大学物质传递与能源工程学院副教授，北京大学力学系学士，美国明尼苏达大学博士，美国总统青年研究者奖获得者。主要从事流体力学研究，在流动稳定性，非牛顿流体，孔隙弹性力学，渗流及石油开采方面在国际顶级期刊上发表论文八十多篇，文章被引用1800多次。在国际上首次发现非牛顿流体界面弹性不稳定性现象,其1991年的2篇文章被公认为这方面的奠基性工作。近年来主要从事渗流研究，并首次发现可压缩流体的一个无滑移速度，类滑流的解(slip-like flow with a no-slip velocity)，此结果成功的解释了页岩油和页岩气的生产机理，该论文最近发表在Journal of Fluid Mechanics上。

报告简介：It is well known that a low pressure compressible flow through a small capillary exhibits a mass flow rate significantly higher than that predicted by the Poiseuille’s law.  In 1879, Maxwell first studied this phenomenon and showed that gas slips on the capillary wall as the collision between the gas molecules and the wall dominates the flow.  In the past two and half decades, this slip theory has been widely used in MEMS and microfluidics applications. The slip theory has also been used to explain why natural gas can be produced from the nanopores of shale. However, shale gas is under very high pressure, as high as 100MPa, and such a slip theory should not be applicable.  In this talk, using the asymptotic theory for low Mach number flows, I will show that the Navier-Stokes equations admit a slip-like solution with a no-slip velocity profile. This solution elucidates the physical mechanism for oil and gas production from shale.

联系人：傅向荣            电话：18910082016

欢迎感兴趣的各位老师与同学们参加！