Free Boundary Problems 2026

On the motion of a rigid body in a perfect compressible fluid

11 Sept 2026, 09:00

30m

Main Building/Floor 2-Room 3075 - Lecture Hall (HU (Main Building))

Fluid-structure Interactions Fluid-structure Interactions

Speaker

Pei SU

Description

We study the interaction between a rigid body and an inviscid compressible fluid in a bounded domain. The fluid is described by the compressible Euler equations, while the rigid body obeys the laws of linear and angular momentum. We prove the existence and uniqueness of classical solutions to the resulting coupled fluid–structure interaction system. The analysis relies on a suitable approximation procedure combined with uniform estimates and compactness arguments.