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We lay down a geometric-analytic framework to capture properties of energy dissipation within weak solutions to the incompressible Euler equations. For solutions with spatial Besov regularity, it is proved that the Duchon-Robert…

偏微分方程分析 · 数学 2025-02-19 Luigi De Rosa , Theodore D. Drivas , Marco Inversi , Philip Isett

We prove the conservation of energy for weak and statistical solutions of the two-dimensional Euler equations, generated as strong (in an appropriate topology) limits of the underlying Navier-Stokes equations and a Monte Carlo-Spectral…

偏微分方程分析 · 数学 2021-02-25 S. Lanthaler , S. Mishra , C. Parés-Pulido

A new transient regime in the relaxation towards absolute equilibrium of the conservative and time-reversible 3-D Euler equation with high-wavenumber spectral truncation is characterized. Large-scale dissipative effects, caused by the…

混沌动力学 · 物理学 2009-11-10 C. Cichowlas , P. Bonaiti , F. Debbasch , M. Brachet

In this paper, we study the energy decay for the thermoelastic Bresse system in the whole line with two different dissipative mechanism, given by heat conduction (Types I and III). We prove that the decay rate of the solutions are very…

偏微分方程分析 · 数学 2017-02-15 F. A. Gallego , J. E. Muñoz Rivera

We establish the decay of the solutions of the damped wave equations in one dimensional space for the Dirichlet, Neumann, and dynamic boundary conditions where the damping coefficient is a function of space and time. The analysis is based…

最优化与控制 · 数学 2022-12-20 Yacine Chitour , Hoai-Minh Nguyen

This paper provides a precise sense in which the time t map for the Euler equations of an ideal fluid in a region in R^n (or a smooth compact n-manifold with boundary) is a Poisson map relative to the Lie-Poisson bracket associated with the…

偏微分方程分析 · 数学 2007-12-03 Sergiy Vasylkevych , Jerrold E. Marsden

The ideal incompressible fluid in two dimensions (Euler fluid) evolves at relaxation from turbulent states to highly coherent states of flow. For the case of double spatial periodicity and zero total vorticity it is known that the…

流体动力学 · 物理学 2014-09-19 Florin Spineanu , Madalina Vlad

Recently the second and third author developed an iterative scheme for obtaining rough solutions of the 3D incompressible Euler equations in H\"older spaces (arXiv:1202.1751 and arXiv:1205.3626 (2012)). The motivation comes from Onsager's…

偏微分方程分析 · 数学 2013-12-12 Tristan Buckmaster , Camillo De Lellis , László Székelyhidi

Three-dimensional two-layer incompressible Euler fluids are studied from a Hamiltonian perspective. A natural Hamiltonian structure for the effective 2D model described by the interface-value of the field variables is obtained by means of a…

数学物理 · 物理学 2026-04-27 R. Camassa , G. Falqui , G. Ortenzi , M. Pedroni , E. Sforza

In this article, we prove linear stability, scattering and inviscid damping with optimal decay rates for the linearized 2D Euler equations around a large class of strictly monotone shear flows, $(U(y),0)$, in a periodic channel under…

偏微分方程分析 · 数学 2015-06-15 Christian Zillinger

We study the global existence of a unique strong solution and its large-time behavior of a two-phase fluid system consisting of the compressible isothermal Euler equations coupled with compressible isentropic Navier-Stokes equations through…

偏微分方程分析 · 数学 2016-07-04 Young-Pil Choi

We investigate two dimensional steady Euler-Poisson system which describe the motion of compressible self-gravitating flows. The unique existence and stability of subsonic flows in a duct of finite length are obtained when prescribing the…

偏微分方程分析 · 数学 2014-06-18 Myoungjean Bae , Ben Duan , Chunjing Xie

We consider the Cauchy problem for systems of semilinear wave equations in two space dimensions. We present a structural condition on the nonlinearity under which the energy decreases to zero as time tends to infinity if the Cauchy data are…

偏微分方程分析 · 数学 2015-10-13 Soichiro Katayama , Akitaka Matsumura , Hideaki Sunagawa

This paper investigates the Cauchy problem for the compressible pressureless Navier-Stokes system in $\mathbb{R}^d$ with $d \geq 2$. Unlike the standard isentropic compressible Navier-Stokes system, the density in the pressureless model…

偏微分方程分析 · 数学 2025-11-05 Fucai Li , Jinkai Ni , Zhipeng Zhang

By a new energy approach involved in the high frequencies and low frequencies decomposition in the Besov spaces, we obtain the optimal decay for the incompressible Oldroyd-B model without damping mechanism in $\mathbb{R}^n$ ($n\ge 2$). More…

偏微分方程分析 · 数学 2019-05-08 Xiaoping Zhai

We study the three-dimensional compressible elastic Navier-Stokes-Poisson equations induced by a new bipolar viscoelastic model derived here, which model the motion of the compressible electrically conducting fluids. The various boundary…

偏微分方程分析 · 数学 2023-06-07 Wenpei Wu , Yong Wang

We study a basic plasma physics model--the one-fluid Euler--Poisson system on the square torus, in which a compressible electron fluid flows under its own electrostatic field. In this paper we prove long-term regularity of periodic…

偏微分方程分析 · 数学 2019-10-07 Fan Zheng

We establish unique existence and stability of subsonic potential flow for steady Euler-Poisson system in a multidimensional nozzle of a finite length when prescribing the electric potential difference on non-insulated boundary from a fixed…

偏微分方程分析 · 数学 2013-06-04 Myoungjean Bae , Ben Duan , Chunjing Xie

This is the second paper in a cycle investigating the exact solution of loop equations in decaying turbulence. We perform numerical simulations of the Euler ensemble, suggested in the previous work, as a solution to the loop equations. We…

流体动力学 · 物理学 2024-03-04 Alexander Migdal

In this paper, we consider a one-dimensional finite-memory Bresse system with homogeneous Dirichlet-Neumann-Neumann boundary conditions. We prove some general decay results for the energy associated with the system in the case of equal and…

偏微分方程分析 · 数学 2021-02-26 Jamilu Hassan , Salim Messaoudi , Toufic Arwadi , Mohammad Hindi