講座主題：Advanced Numerical Methodologies for Fluid-Structure Interaction (FSI) Problems
專家姓名：孫澎濤
工作單位：美國內華達大學
講座時間：2024年06月28日10:00-11:30
講座地點：數學與信息科學學院341
主辦單位：煙臺大學數學與信息科學學院
內容摘要：
In this talk, I will present my resent research work on fluid-structure interaction (FSI) problems. The interaction of a flexible structure with a flowing fluid in which it is submersed or by which it is surrounded gives rise to a rich variety of physical phenomena with applications in many fields of engineering. Thus, finding accurate, efficient and robust ways to model and simulate both fluid and structure that are dynamically coupled together through moving interfaces has been always crucial to understand the phenomena of FSI. There are currently several major approaches for solving FSI problems that are classified by either the numerical treatment on interface conditions or the mesh conformity across moving interfaces. In my talk, I will briefly present four advanced numerical methodologies developed and analyzed in my research work of numerical FSI: (1) body-fitted mesh method; (2) body-unfitted mesh method; (3) meshfree/deep neural network method; and (4) reduced order modeling method, where the monolithic approach is adopted for each technique to realistically implement the dynamic coupling between fluid and structure. In addition, numerical experiments of substantial FSI problems ranging from hydrodynamics (physics) to hemodynamics (physiology) will also be shown in this talk to illustrate that the presented well developed numerical methodologies can produce high-fidelity numerical results for realistic FSI problems in anefficient and accurate fashion.
主講人介紹：
孫澎濤，教授、博士生導師。現為美國內華達大學數學科學系終身教授，于1997年獲得中國科學院博士學位，2013年被內華達大學提職為副教授（終身教職），2016年被授予美國內華達大學理學院杰出研究獎。在2007年入職美國內華達大學之前，曾先后在中國科學院、香港理工大學、美國賓夕法尼亞州立大學、加拿大西蒙弗雷澤大學擔任博士后、副研究員、助理教授等職位。在數學應用的多個領域有建樹，發(fā)表論文90余篇，2008年以來的研究課題連續(xù)被美國國家自然科學基金（NSF）和內華達大學的教授研究獎勵基金所資助。主要研究方向為偏微分方程的數值解法和科學與工程計算，在固體力學、流體力學、流固耦合、燃料電池、帶電流體等領域的有限元方法、有限體積法。
