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相关论文: Linear inviscid damping for stably stratified Bous…

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We consider the long-time behavior of solutions to the two dimensional non-homogeneous Euler equations under the Boussinesq approximation posed on a periodic channel. We study the linearized system near a linearly stratified Couette flow…

偏微分方程分析 · 数学 2023-09-20 Michele Coti Zelati , Marc Nualart

We investigate the long-time properties of the two-dimensional inviscid Boussinesq equations near a stably stratified Couette flow, for an initial Gevrey perturbation of size $\varepsilon$. Under the classical Miles-Howard stability…

偏微分方程分析 · 数学 2021-03-26 Jacob Bedrossian , Roberta Bianchini , Michele Coti Zelati , Michele Dolce

This short note provides explicit solutions to the linearized Boussinesq equations around the stably stratified Couette flow posed on $\mathbb{T}\times\mathbb{R}$. We consider the long-time behavior of such solutions and prove inviscid…

偏微分方程分析 · 数学 2023-09-20 Michele Coti Zelati , Marc Nualart

We investigate the linear stability of shears near the Couette flow for a class of 2D incompressible stably stratified fluids. Our main result consists of nearly optimal decay rates for perturbations of stationary states whose velocities…

偏微分方程分析 · 数学 2021-01-07 Roberta Bianchini , Michele Coti Zelati , Michele Dolce

This article is concerned with the asymptotic behavior of the two-dimensional inviscid Boussinesq equations with a damping term in the velocity equation. Precisely, we provide the time-decay rates of the smooth solutions to that system. The…

偏微分方程分析 · 数学 2021-04-26 Roberta Bianchini , Roberto Natalini

We study the inviscid damping of Couette flow with an exponentially stratified density. The optimal decay rates of the velocity field and the density are obtained for general perturbations with minimal regularity. For Boussinesq…

偏微分方程分析 · 数学 2017-10-12 Jincheng Yang , Zhiwu Lin

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 consider the 2D Boussinesq equations with a velocity damping term in a strip $\mathbb{T}\times[-1,1]$, with impermeable walls. In this physical scenario, where the \textit{Boussinesq approximation} is accurate when density/temperature…

偏微分方程分析 · 数学 2018-10-02 Angel Castro , Diego Córdoba , Daniel Lear

We prove nonlinear asymptotic stability of a large class of monotonic shear flows among solutions of the 2D Euler equations in the channel $\mathbb{T}\times[0,1]$. More precisely, we consider shear flows $(b(y),0)$ given by a function $b$…

偏微分方程分析 · 数学 2020-01-10 Alexandru D. Ionescu , Hao Jia

We give a proof of linear inviscid damping and vorticity depletion for non-monotonic shear flows with one critical point in a bounded periodic channel. In particular, we obtain quantitative depletion rates for the vorticity function without…

偏微分方程分析 · 数学 2024-02-01 Alexandru D. Ionescu , Sameer Iyer , Hao Jia

We consider the quantitative asymptotic stability of the stably stratified Couette flow solution to the 2D fully dissipative nonlinear Boussinesq system on $\mathbb{R}^2$ with large Richardson number $R > 1/4$, viscosity $\nu$ and density…

偏微分方程分析 · 数学 2025-03-11 Ryan Arbon

Neither natural nor laboratory laminar flows are perfectly steady. Instead, they are frequently highly unsteady, as illustrated by experimental studies on B\'{e}nard convection. In the paper, we investigate the transition threshold of the…

偏微分方程分析 · 数学 2026-03-18 Qionglei Chen , Zhen Li

In this paper, we prove the linear damping for the 2-D Euler equations around a class of shear flows under the assumption that the linearized operator has no embedding eigenvalues. For the symmetric flows, we obtain the explicit decay…

偏微分方程分析 · 数学 2017-04-04 Dongyi Wei , Zhifei Zhang , Weiren Zhao

We give an elementary proof of sharp decay rates and the linear inviscid damping near monotone shear flow in a periodic channel, first obtained in [14]. We shall also obtain the precise asymptotics of the solutions, measured in the space…

偏微分方程分析 · 数学 2019-02-20 Hao Jia

In this paper, we investigate linear stability properties of the 2D isentropic compressible Euler equations linearized around a shear flow given by a monotone profile, close to the Couette flow, with constant density, in the domain…

偏微分方程分析 · 数学 2020-03-04 Paolo Antonelli , Michele Dolce , Pierangelo Marcati

The main objective of this article is to study the nonlinear stability and dynamic transitions of the basic (zonal) shear flows for the three-dimensional continuously stratified rotating Boussinesq model. The model equations are fundamental…

流体动力学 · 物理学 2018-04-04 Taylan Şengül , Shouhong Wang

In this article we consider the stability and damping problem for the 2D Boussinesq equations with partial dissipation near a two parameter family of stationary solutions which includes Couette flow and hydrostatic balance. In the first…

偏微分方程分析 · 数学 2020-04-20 Christian Zillinger

We study the stability of special, stratified solutions of a 3d Boussinesq system describing an incompressible, inviscid 3d fluid with variable density (or temperature, depending on the context) under the effect of a uni-directional…

偏微分方程分析 · 数学 2020-01-22 Klaus Widmayer

Linear stability of inviscid, parallel, and stably stratified shear flow is studied under the assumption of smooth strictly monotonic profiles of shear flow and density, so that the local Richardson number is positive everywhere. The…

流体动力学 · 物理学 2016-05-04 Makoto Hirota , Philip J. Morrison

We prove the nonlinear inviscid damping for a class of monotone shear flows with non-constant background density for the two-dimensional ideal inhomogeneous fluids in $\mathbb{T}\times [0,1]$ when the initial perturbation is in…

偏微分方程分析 · 数学 2025-02-06 Weiren Zhao
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