Liutex and Third Generation of Vortex Identification: Workshop from Aerospace and Aeronautics World Forum 2021 (Liutex與第三代渦流識別：2021年航空航天世界論壇研討會)

本次會議記錄強調了新引入的物理量 Liutex 在流體力學和氣動力學中的應用。Liutex 用於表示流體中迷人的旋轉運動，即渦流。渦流在自然界和工程應用中隨處可見，但其定義一直難以捉摸。Liutex 向量提供了對渦流獨特且系統的描述。本會議記錄收集了在 2021 年航空航天與航空世界論壇的邀請研討會「Liutex 和第三代渦流識別在工程應用中的應用」中發表的論文。本書中的論文涵蓋了 Liutex 的理論方面以及在流體力學和氣動力學中的多種應用。本會議記錄對於對 Liutex 的廣泛應用範疇感興趣並希望利用其發展新理解的流體力學研究者來說，是一個良好的參考資料。

Yiqian WangDr. Yiqian Wang is currently an associate professor at Soochow University, Suzhou, China. He obtained his Ph.D. from Nanjing University of Aeronautics and Astronautics, Nanjing, China, in 2016. He did research at the University of Texas at Arlington as an visiting student under the supervision of Prof. Chaoqun Liu during 2014 2015. After graduation, he became a postdoctoral researcher at Tsinghua University for two years until 2019 when he joined Soochow University. He is one of the main contributors to the developments of the third generation of vortex identification methods, especially the Liutex-based system and the Omega methods. As the coeditor, he and Prof. Chaoqun Liu have published a proceeding book titled "Liutex and Third Generation of Vortex Definition and Identification, An Invited Workshop from Chaos 2020" with Springer. His research focuses on vortex identification, turbulence and numerical methods.
Yisheng GaoDr. Yisheng Gao is currently a lecturer at Nanjing University of Aeronautics and Astronautics University, Nanjing, China. He received his Bachelor of Engineering degree in Aircraft Design and Engineering (2007), Master of Engineering degree in Fluid Mechanics (2009) and Ph. D. degree in Fluid Mechanics (2016) from Nanjing University of Aeronautics and Astronautics University, China. He was a postdoctoral fellow at the University of Texas at Arlington, Texas, USA in 2017-2019. He has published more than 20 journal and conference papers and has been one of the main contributors to the developments of the third generation of vortex identification methods. His research is concerned with computational fluid dynamics, including direct numerical simulation and discrete adjoint methods.
Chaoqun LiuDr. Chaoqun Liu received both BS (1968) and MS (1981) from Tsinghua University, Beijing, China and PhD (1989) from University of Colorado at Denver, USA. He is currently the Tenured and Distinguished Professor and the Director of Center for Numerical Simulation and Modeling at University of Texas at Arlington, Arlington, Texas, USA. He has worked on high order direct numerical simulation (DNS) and large eddy simulation (LES) for flow transition and turbulence for 32 years since 1990. As PI, he has been awarded by NASA, US Air Force and US Navy with 50 federal research grants of over 5.7 × 106 US dollars in the United States. He has published 14 professional books, 140 journal papers and 158 conference papers. He is the founder and main contributor of Liutex and the third generation of vortex definition and identification methods including the Omega, Liutex/Rortex, Modified Liutex-Omega, Liutex-Core-Line methods, Objective Liutex, RS vorticity decomposition and UTA R-NR velocity gradient tensor decomposition. He is also the founder of Liutex based new fluid kinematics.

王怡千博士目前是中國蘇州的蘇州大學副教授。他於2016年獲得南京航空航天大學的博士學位。在2014至2015年間，他在德克薩斯州阿靈頓的德克薩斯大學擔任訪問學生，指導教授為劉超群教授。畢業後，他在清華大學擔任兩年的博士後研究員，直到2019年加入蘇州大學。他是第三代渦流識別方法發展的主要貢獻者之一，特別是在基於Liutex的系統和Omega方法方面。作為共同編輯，他與劉超群教授共同出版了題為《Liutex and Third Generation of Vortex Definition and Identification, An Invited Workshop from Chaos 2020》的會議論文集，出版商為Springer。他的研究重點在於渦流識別、湍流和數值方法。

高義生博士目前是中國南京航空航天大學的講師。他於2007年獲得航空器設計與工程的工程學士學位，2009年獲得流體力學的工程碩士學位，2016年獲得流體力學的博士學位，均來自南京航空航天大學。他在2017至2019年間擔任德克薩斯州阿靈頓的德克薩斯大學的博士後研究員。他已發表超過20篇期刊和會議論文，並且是第三代渦流識別方法發展的主要貢獻者之一。他的研究涉及計算流體力學，包括直接數值模擬和離散伴隨方法。

劉超群博士於1968年和1981年分別獲得清華大學的學士和碩士學位，並於1989年獲得美國科羅拉多大學丹佛分校的博士學位。他目前是德克薩斯州阿靈頓的德克薩斯大學的終身教授和傑出教授，以及數值模擬與建模中心的主任。自1990年以來，他在流動過渡和湍流的高階直接數值模擬（DNS）和大渦模擬（LES）方面工作了32年。作為主要研究者，他獲得了來自NASA、美國空軍和美國海軍的50項聯邦研究資助，總金額超過570萬美元。他已出版14本專業書籍、140篇期刊論文和158篇會議論文。他是Liutex及第三代渦流定義和識別方法的創始人和主要貢獻者，包括Omega、Liutex/Rortex、改良Liutex-Omega、Liutex-Core-Line方法、客觀Liutex、RS渦度分解和UTA R-NR速度梯度張量分解。他也是基於Liutex的新流體運動學的創始人。