On the collision of Lamb dipoles: Traveling waves and stability

Speaker: In-Jee Jeong, Professor, Korea Institute for Advanced Study

Inviter: 秦国林 博士

Title: On the collision of Lamb dipoles: Traveling waves and stability

Language: English

Time & Venue: 2026.10.12 13:30-14:30 科技综合楼（蓝白楼）Z301

Abstract: The Lamb dipole is a classical traveling-wave solution of the two-dimensional incompressible Euler equations, consisting of a pair of counter-rotating vortices. This talk introduces the structure and translation of a single Lamb dipole and discusses its stability as a starting point for the study of coherent vortex motion. We explain the role of the traveling-wave description and the questions that arise when several dipoles are present. The emphasis is on the background needed to understand how initially well-separated dipoles may translate, deform, and interact.