With the increasing interests in micro/nano-fluidics and structures, multiscale flow and heat transfer problems have received particular attention over the past decades.It is a challenging problem for modeling and simulating such processes due to the large span of temporal and spatial scales. In this talk, we will report the development of a discrete unified gas kinetic scheme (DUGKS) method for modeling multiscale transport problems based on kinetic theory. It is shown that the DUGKS has the asymptotic perseveringproperties and can serve as a self-adaptive multiscale simulation method. A number of numerical tests are carried out to validate the method, and the results demonstrate that the DUGKS can serve as an efficient numerical method for multiscale transport problems.

报告人简介：郭照立，华中科技大学煤燃烧国家重点实验室教授，国家杰出青年基金获得者，长江学者特聘教授。2000年于华中科技大学获得工学博士学位，2000-2003年在华中科技大学煤燃烧国家重点实验室从事博士后研究，2003-2005年香港科技大学机械系访问学者，2005年至今在华中科技大学工作。主要从事复杂流动的介观物理模型和数值方法、微纳尺度及跨尺度流动与传热、多相多组分渗流微观机理等方面的基础研究。承担国家自然科学基金4项、973专题2项。发表SCI论文120余篇，SCI引用3000余次，SCI-H指数25；合著专著3部；获得国家自然科学二等奖1项。