报告题目：Multi-Scale Simulations of Rheology and Flow of Commercially Important Materials: Paints, Shampoos, and Polyethylenes
报告人：Ronald G. Larson（美国工程院院士、美国密歇根大学教授）
报告时间：2025年5月14日（星期三）上午10:00—11:30
报告地址：五山科技园2号楼324报告厅
报告邀请人：周嘉嘉教授
邀请单位：前沿软物质土耳其里拉兑换人民币
报告摘要：
Continuum-level thermodynamic, rheology, and flow properties relevant to industrial and consumer applications can now be computed from multi-scale simulations ranging from molecular dynamics (MD), Brownian dynamics (BD), and continuum fluid mechanical simulations. Molecular simulations are aided by biasing methods, such as umbrella sampling, and forward flux sampling. Reduction of computation is assisted by non-linear optimization methods, including the Genetic Algorithm and the Particle Swarm Method. We demonstrate the power of these methods by computing the dynamics and rheology of “polymer-like” worm-like surfactant solutions and colloid-polymer mixtures used in consumer and industrial products, namely shampoos and paints, and film blowing of polyethylene polymers. We also compare the predicted results to experimental data, and extract information, that is unavailable, or not easily available, from experiments alone.
报告人简介：
Ronald Larson received a B.S in 1975, an M.S. in 1977, and a Ph.D. in 1980, all in chemical engineering from the University of Minnesota. Dr. Larson became a Professor of Chemical Engineering at the University of Michigan in 1996, and Department Chairman in 2000, after working for 16 years at Bell Laboratories in Murray Hill, New Jersey. He also served as interim Chair of the Biomedical Engineering Department for a year, and is a member of that department, the Mechanical Engineering Department, the Applied Physics Department, and the Macromolecular Science and Engineering Program. Larson’s research interests are in the structure and flow properties of viscous or elastic fluids, sometimes called “complex fluids”, which include polymers, colloids, surfactant-containing fluids, and liquid crystals, as well as the methods of shaping such materials into useful products. He is the author of the monograph “The Structure and Rheology of Complex Fluids”. He is a recipient of AIChE’s Alpha Chi Sigma Award for Chemical Engineering Research (2000), the Bingham Medal from the Society of Rheology (2002), and the Polymer Physics Prize of the American Physical Society (2019). In 2003, he was elected to the National Academy of Engineering.
