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相关论文: On the motion of rigid bodies in a perfect fluid

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We consider a system of multiple insulating rigid bodies moving inside of an electrically conducting compressible fluid. In this system we take into account the interaction of the fluid with the bodies as well as with the electromagnetic…

偏微分方程分析 · 数学 2022-08-15 Jan Scherz

We consider a rigid body freely moving in a compressible inviscid fluid within a bounded domain $\Omega\subset\mathbb{R}^3$. The fluid is thereby governed by the non necessarily isentropic compressible Euler equations, while the rigid body…

偏微分方程分析 · 数学 2025-12-11 Frédéric Rousset , Pei Su

We consider the motion of a rigid body immersed in an incompressible perfect fluid which occupies a three-dimensional bounded domain. For such a system the Cauchy problem is well-posed locally in time if the initial velocity of the fluid is…

偏微分方程分析 · 数学 2024-12-30 Olivier Glass , Franck Sueur , Takeo Takahashi

This paper is devoted to the existence of a weak solution to a system describing a self-propelled motion of a rigid body in a viscous fluid in the whole $\mathbb{R}^3$. The fluid is modelled by the incompressible nonhomogeneous…

偏微分方程分析 · 数学 2019-10-14 Sarka Necasova , Mythily Ramaswamy , Arnab Roy , Anja Schlomerkemper

We consider the motion of several rigid bodies immersed in a two-dimensional incompress-ible perfect fluid, the whole system being bounded by an external impermeable fixed boundary. The fluid motion is described by the incompressible Euler…

偏微分方程分析 · 数学 2019-04-15 Olivier Glass , Christophe Lacave , Alexandre Munnier , Franck Sueur

In three space dimensions, we consider the compressible inviscid model describing the time evolution of two fluids sharing the same velocity and enjoying the algebraic pressure closure. By employing the technique of convex integration, we…

偏微分方程分析 · 数学 2019-12-24 Yang Li , Ewelina Zatorska

In this paper, we consider a moving rigid solid immersed in a potential fluid. The fluid-solid system fills the whole two dimensional space and the fluid is assumed to be at rest at infinity. Our aim is to study the inverse problem,…

偏微分方程分析 · 数学 2015-05-19 Carlos Conca , Muslim Malik , Alexandre Munnier

In this paper we consider the motion of a rigid body in a viscous incompressible fluid when some Navier slip conditions are prescribed on the body's boundary. The whole `viscous incompressible fluid + rigid body' system is assumed to occupy…

偏微分方程分析 · 数学 2018-10-03 Marco Bravin

We study the dynamics of a coupled system, formed by a rigid body with a cavity entirely filled with magnetohydrodynamic compressible fluid. Our aim is to derive the global existence of the unique classical solutions and weak solutions to…

偏微分方程分析 · 数学 2023-07-26 Bingkang Huang , Václav Mácha , Šárka Nečasová

Chaplygin's equations describing the planar motion of a rigid body in an unbounded volume of an ideal fluid involved in a circular flow around the body are considered. Hamiltonian structures, new integrable cases, and partial solutions are…

可精确求解与可积系统 · 物理学 2009-11-11 A. V. Borisov , I. S. Mamaev

In this paper we consider the motion of a rigid body immersed in a two dimensional unbounded incompressible perfect fluid with vorticity. We prove that when the body shrinks to a massless pointwise particle with fixed circulation, the…

偏微分方程分析 · 数学 2016-01-20 Olivier Glass , Christophe Lacave , Franck Sueur

We prove the existence of a weak solution to the equations describing the inertial motions of a coupled system constituted by a rigid body containing a viscous compressible fluid. We then provide a weak-strong uniqueness result that allows…

偏微分方程分析 · 数学 2020-03-18 Giovanni Paolo Galdi , Václav Mácha , Šárka Nečasová

We consider the motion of a rigid body immersed in an ideal flow occupying the plane, with bounded initial vorticity. In that case there exists a unique corresponding solution which is global in time, in the spirit of the famous work by…

偏微分方程分析 · 数学 2024-12-30 Olivier Glass , Franck Sueur

In this paper we consider the motion of a rigid body in a viscous incompressible fluid when some Navier slip conditions are prescribed on the body's boundary. The whole system "viscous incompressible fluid + rigid body" is assumed to occupy…

偏微分方程分析 · 数学 2024-12-30 Gabriela Planas , Franck Sueur

Motion of a cylinder dynamically interacting with n point vortices in a perfect fluid is considered. A nonliniear Poisson structure and two integrals of motion are found. The equations of motion a priori are not Hamiltonian. For n=1, the…

混沌动力学 · 物理学 2007-05-23 A. V. Borisov , I. S. Mamaev

In this paper we prove that the motion of a solid body in a two dimensional incompressible perfect fluid converges, when the body shrinks to a point with fixed mass and circulation, to a variant of the vortex-wave system where the vortex,…

偏微分方程分析 · 数学 2011-04-29 Olivier Glass , Christophe Lacave , Franck Sueur

We consider the evolution of a small rigid body in an incompressible viscous fluid filling the whole space. The motion of the fluid is modelled by the Navier-Stokes equations, whereas the motion of the rigid body is described by the…

偏微分方程分析 · 数学 2021-03-10 Jiao He , Dragos Iftimie

In this work, we study the motion of a rigid body in a bounded domain which is filled with a compressible isentropic fluid. We consider the Navier-slip boundary condition at the interface as well as at the boundary of the domain. This is…

偏微分方程分析 · 数学 2021-03-17 S. Necasova , M. Ramaswamy , A. Roy , A. Schlomerkemper

We study the motion of a rigid body within a compressible, isentropic, and viscous fluid contained in a fixed bounded domain $\Omega \subset \mathbb{R}^3$. The fluid's behavior is described by the Navier-Stokes equations, while the motion…

偏微分方程分析 · 数学 2024-08-15 Šimon Axmann , Šárka Nečasová , Ana Radošević

In this work we study the coupled system of partial and ordinary differential equations describing the interaction between a compressible isentropic viscous fluid and a rigid body moving freely inside the fluid. In particular the position…

偏微分方程分析 · 数学 2019-05-27 Ondrej Kreml , Sarka Necasova , Tomasz Piasecki
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