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This work is devoted to investigating stochastic turbulence for the fluid flow in one-dimensional viscous Burgers equation perturbed by L\'evy space-time white noise with the periodic boundary condition. We rigorously discuss the regularity…

概率论 · 数学 2021-06-08 Shenglan Yuan , Dirk Blömker , Jinqiao Duan

We prove a sufficient condition for nonlinear stability of relative equilibria in the planar $N$-vortex problem. This result builds on our previous work on the Hamiltonian formulation of its relative dynamics as a Lie--Poisson system. The…

动力系统 · 数学 2024-06-19 Tomoki Ohsawa

We investigate the stability of large-scale structures in Burgers' equation under the perturbation of high wave-number noise in the initial conditions. Analytical estimates are obtained for random initial data with spatial spectral density…

chao-dyn · 物理学 2009-10-22 Erik Aurell , Sergey N. Gurbatov , Igor I. Wertgeim

We consider global-in-time small mild solutions of the initial value problem to the incompressible Navier-Stokes equations in $R^3$. For such solutions, an asymptotic stability is established under arbitrarily large initial…

偏微分方程分析 · 数学 2013-09-02 Grzegorz Karch , Dominika Pilarczyk , Maria E. Schonbek

In this work we investigate the question of preventing the three-dimensional, incompressible Navier-Stokes equations from developing singularities, by controlling one component of the velocity field only, in space-time scale invariant…

偏微分方程分析 · 数学 2018-07-27 Jean-Yves Chemin , Isabella Gallagher , Ping Zhang

In this paper, we study some conditions related to the question of the possible blow-up of regular solutions to the 3D Navier-Stokes equations. In particular, up to a modification in a proof of a very recent result from \cite{Isab}, we…

偏微分方程分析 · 数学 2020-12-14 Haroune Houamed

Linear stability of solid body rotating flows with axisymmetric density variations is addressed analytically. Considering inviscid disturbances, a non trivial dispersion relation is obtained and it is shown that the instability is of…

流体动力学 · 物理学 2023-08-24 C. Jacques , B. Di Pierro , F. Alizard , M. Buffat , A. Cadiou , L. Le Penven

Linearized stability of incompressible viscous fluid flows in a thin spherical shell is studied by using the two-dimensional Navier--Stokes equations on a sphere. The stationary flow on the sphere has two singularities (a sink and a source)…

经典分析与常微分方程 · 数学 2009-11-11 Ranis N. Ibragimov , Dmitry E. Pelinovsky

We study the two-dimensional stationary Navier-Stokes equations with rotating effect in the whole space. The unique existence and the asymptotics of solutions are obtained without the smallness assumption on the rotation parameter.

偏微分方程分析 · 数学 2017-03-23 Mitsuo Higaki , Yasunori Maekawa , Yuu Nakahara

This paper is an introduction to the theory of 1d stochastic Burgers equation under periodic boundary conditions and with a stochastic force, sufficiently smooth in the space variable. We prove the classical results on the existence and…

偏微分方程分析 · 数学 2015-04-30 Takfarinas Kelaï , Sergei Kuksin

In this paper, we will prove a regularity criterion that guarantees solutions of the Navier--Stokes equation must remain smooth so long as the the vorticity restricted to a plane remains bounded in the scale critical space $L^4_t L^2_x$,…

偏微分方程分析 · 数学 2021-10-08 Evan Miller

Rotation is a crucial characteristic of fluid flow in the atmosphere and oceans, which is present in nearly all meteorological and geophysical models. The global existence of solutions to the 3D Navier-Stokes equations with large rotation…

偏微分方程分析 · 数学 2024-09-30 Wenting Huang , Ying Sun , Xiaojing Xu

Vortex flow remains laminar up to large Reynolds numbers (Re~1000) in a cylinder filled with 3He-B. This is inferred from NMR measurements and numerical vortex filament calculations where we study the spin up and spin down responses of the…

其他凝聚态物理 · 物理学 2011-02-23 V. B. Eltsov , R. de Graaf , P. J. Heikkinen , J. J. Hosio , R. Hanninen , M. Krusius , V. S. L'vov

We provide a short proof of $L^3$-asymptotic stability around vector fields that are small in weak-$L^3$, including small Landau solutions. We show that asymptotic stability also holds for vector fields in the range of Lorentz spaces…

偏微分方程分析 · 数学 2024-09-20 Zachary Bradshaw , Weinan Wang

We consider variational principles related to V. I. Arnold's stability criteria for steady-state solutions of the two-dimensional incompressible Euler equation. Our goal is to investigate under which conditions the quadratic forms defined…

偏微分方程分析 · 数学 2024-03-13 Thierry Gallay , Vladimir Sverak

The current paper is devoted to the investigation of the global-in-time stability of large solutions for the full Navier-Stokes-Fourier system in the whole space. Suppose that the density and the temperature are bounded from above uniformly…

偏微分方程分析 · 数学 2020-01-06 Lingbing He , Jingchi Huang , Chao Wang

We consider a family of 3D models for the axi-symmetric incompressible Navier-Stokes equations. The models are derived by changing the strength of the convection terms in the axisymmetric Navier-Stokes equations written using a set of…

偏微分方程分析 · 数学 2017-08-28 Thomas Y Hou , Pengfei Liu , Fei Wang

We consider the barotropic Navier-Stokes system in three space dimensions with periodic boundary condition in the transversal direction. We show the long-time behavior of the 3D barotropic Navier-Stokes flow perturbed from a composition of…

偏微分方程分析 · 数学 2024-06-18 Moon-Jin Kang , Hobin Lee

Regularity and uniqueness of weak solutions of the compressible barotropic Navier-Stokes equations with constant viscosity coefficients is proven for small time in dimension $N=2,3$ under periodic boundary conditions. In this paper, the…

偏微分方程分析 · 数学 2011-11-11 Boris Haspot

For the 3D Navier-Stokes-Maxwell problem on the whole space and in the presence of external time-periodic forces, first we study the existence of time-periodic small solutions, and then we prove their asymptotic stability. We use new type…

偏微分方程分析 · 数学 2016-01-26 Slim Ibrahim , Pierre-Gilles Lemarie , Nader Masmoudi