报告题目：Tide rip and millpond: nonlinear internal waves and their signatures

报告人：王展 研究员（中国科学院力学研究所）

报告时间：2023年9月27日（周三）上午10:00

报告地点：明故宫校区A18-529报告厅

主办单位：航空航天结构力学及控制全国重点实验室、南京航空航天大学航空学院、科协

报告内容：

  The general marine environment, namely the ‘wind-wave-current’ system, can develop into a typhoon, rogue wave, internal wave, or other extraordinary situations under specific circumstances, significantly impacting offshore engineering structures and the safety of life and property in coastal areas. Given the characteristics of marine disasters in the South China Sea - the frequent occurrence of internal waves - we discuss the generation mechanism and propagation of internal solitary waves and their impact on marine engineering. In particular, we show that a large-amplitude internal solitary wave can excite a fully localized ‘rip’ region on the sea surface, called the ‘surface signature’ or ‘tide rip’ in the literature. This phenomenon is much like Bohr’s model of the hydrogen atom in the semi-classical limit in quantum mechanics. We describe the reasons for these peculiar wave phenomena based on modeling, numerical simulation, and multi-scale analysis. In the end, studies of internal oceanic waves are generalized to the atmosphere with particular attention to arched undular bores and the Kelvin wake.

报告人简介：

王展，中国科学院力学研究所研究员、学术委员会副主任，中科院流固耦合系统力学重点实验室主任。本科与硕士毕业于南京大学，2012年获威斯康星大学麦迪逊分校博士学位；毕业后曾先后担任伦敦大学学院研究助理和巴斯大学数学科学系讲师。主要从事非线性水波、地球物理流体力学、电磁流体力学、流动稳定性等方向的理论与应用基础研究。曾任美国Woods Hole海洋研究所GFD Fellow和Staff Member，目前担任中国科学院大学岗位教授、中国力学学会环境力学专业委员会副主任、《力学进展》副主编、《Theoretical & Applied Mechanics Letters》等多种期刊编委。