应土木工程与力学学院、西部灾害与环境力学教育部重点实验室邀请，南方科技大学王连平教授（国家自然科学基金海外杰出青年）将于2023年7月6日做学术报告，欢迎广大师生参加。
- 报告题目：Inverse-design considerations of Boltzmann-equation based CFD methods for continuum flows
- 报 告 人：王连平 教授
- 报告时间：2023年7月6日（星期四）9:00-11:00
- 报告地点：祁连堂322 报告厅
- 主 持 人：郑晓静 教授
报告人简介
Dr. Lian-Ping Wang received a Batchelor’s degree in Mechanics from Zhejiang University, Hangzhou, China in 1984, and a PhD in Mechanical Engineering from Washington State University in 1990. He was then a Visiting Research Associate at Brown University from 1990 to 1992, after which he was a Research Associate at Pennsylvania State University from 1992 to 1994. He was a faculty member in the Department of Mechanical Engineering at the University of Delaware from 1994 to 2020. In 2017, he was appointed a Chaired Professor at Southern University of Science and Technology, China. Dr. Wang’s areas of expertise include computational fluid dynamics, turbulence, particle-laden flow and immiscible multiphase flow. In recent years, he has focused on the development of mesoscopic CFD methods and its application in direct numerical simulation of complex flows. Dr. Wang is an elected Fellow of American Physical Society and an elected Fellow of American Society of Mechanical Engineers. He became Associate Editor of Journal of Fluid Mechanics in May 2022.
王连平博士于1984年在中国杭州浙江大学获得力学学士学位，1990年在美国华盛顿州立大学获得机械工程博士学位。1990年至1992年，在美国布朗大学应用数学系和流体力学湍流计算中心从事博士后研究；1992年至1994年，在美国滨州州立大学机械系和气象系任副研究员；1994年开始任教于特拉华大学机械系；2018年至今在南方科技大学力学与航空航天工程系担任讲席教授。王连平博士的研究领域包括计算流体动力学、湍流、颗粒流和不混溶多相流。近年来，他专注于细观CFD方法的发展及其在复杂流动直接数值模拟中的应用。王连平博士是美国物理学会会士和美国机械工程师学会会士。他于2022年5月成为《流体力学杂志》副主编。
报告摘要
Boltzmann-equation based methods such as the lattice Boltzmann method (LBM) and the discrete unified gas kinetic scheme (DUGKS) now play a major role in computational fluid dynamics, due to their simplicity in formulation, feasibility in incorporating microscopic physics, low numerical dissipation, and advantages in parallel implementation. In most cases, they are used to simulate continuum flows, namely, as alternative methods for solving the Navier-Stokes-Fourier system or multiphase flow systems. In this sense, Boltzmann-equation based methods are methods deigned in a high-dimension configuration space, which bear both advantages in design flexibilities and challenges in analytical decision-making. The design of the model Boltzmann equations for the interior nodes and the implementation of hydrodynamic boundary conditions at the boundary nodes are two major considerations that determine their accuracy and numerical stability. The design details are not unique, and merits and issues in these should be carefully analyzed. In this talk, I shall discuss and illustrate these aspects from theoretical viewpoints, together with various simulation results.