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Related papers: Asymptotic stability for two-dimensional Boussines…

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In this paper, we study the stability threshold of the two-dimensional Boussinesq equations around the Couette flow in an infinite channel $\mathbb{R} \times [-1, 1]$ under no-slip boundary conditions. We prove that the Couette flow is…

Analysis of PDEs · Mathematics 2025-12-02 Tao Liang , Jiahong Wu , Xiaoping Zhai

We investigate the nonlinear stability problem for the two-dimensional Boussinesq system around the Poiseuille flow in a finite channel. The system has the characteristic of Navier-slip boundary condition for the velocity and Dirichlet…

Analysis of PDEs · Mathematics 2024-05-21 Gaofeng Wang

In this paper, we prove the stability of Couette flow for 2D Navier-Stokes Boussinesq system without thermal diffusivity for the initial perturbation in Gevrey-$\frac{1}{s}$, ($1/3<s\leq 1$). The synergism of density mixing, vorticity…

Analysis of PDEs · Mathematics 2020-10-06 Nader Masmoudi , Belkacem Said-Houari , Weiren Zhao

In this paper, we investigate the stability threshold problem of the two-dimensional Navier-Stokes Boussinesq(NSB) equations in a finite channel $ \T \times [-1,1]$, focusing on the stability around the near Couette shear flow $ (U(y), 0)$,…

Analysis of PDEs · Mathematics 2025-04-16 Tao Liang , Yongsheng Li , Xiaoping Zhai

In this paper, we study the nonlinear asymptotic stability of Couette flow for the two-dimensional Navier-Stokes equation with small viscosity $\nu>0$ in $\mathbb{T}\times\mathbb{R}$. It's generally known the nonlinear asymptotic stability…

Analysis of PDEs · Mathematics 2022-09-01 Hui Li , Nader Masmoudi , Weiren Zhao

In this paper, we improve the size requirement of the perturbations for the asymptotic stability of the Couette flow in stratified fluids governed by the two-dimensional Navier-Stokes-Boussinesq system. More precisely, the size of perturbed…

Analysis of PDEs · Mathematics 2024-09-25 Binqian Niu , Weiren Zhao

This paper establishes the nonlinear stability of the Couette flow for the 2D Boussinesq equations with only vertical dissipation. The Boussinesq equations concerned here model buoyancy-driven fluids such as atmospheric and oceanographic…

Analysis of PDEs · Mathematics 2020-04-21 Wen Deng , Jiahong Wu , Ping Zhang

In this paper, we study the nonlinear asymptotic stability of the Couette flow in the stably stratified regime, namely the Richardson number $\gamma^2>\frac{1}{4}$. Precisely, we prove that if the initial perturbation…

Analysis of PDEs · Mathematics 2022-04-21 Cuili Zhai , Weiren Zhao

This paper establishes the asymptotic stability threshold for the Couette flow $(y,0)$ under the 2D Boussinesq system in $\mathbb{R}^2$. It was proved that for initial perturbations in Sobolev spaces with controlled low horizontal…

Analysis of PDEs · Mathematics 2025-08-19 Yubo Chen , Wendong Wang , Guoxu Yang

The Boussinesq system for buoyancy driven fluids couples the momentum equation forced by the buoyancy with the convection-diffusion equation for the temperature. One fundamental issue on the Boussinesq system is the stability problem on…

Analysis of PDEs · Mathematics 2020-05-28 Oussama Ben Said , Uddhaba Raj Pandey , Jiahong Wu

In this paper, we investigate the nonlinear stability and transition threshold for the 3D Boussinesq system in Sobolev space under the high Reynolds number and small thermal diffusion in $\mathbb{T}\times\mathbb{R}\times\mathbb{T} $. It is…

Analysis of PDEs · Mathematics 2025-04-24 Shikun Cui , Lili Wang , Wendong Wang

In this paper, we consider the stability threshold for the shear flows of the Boussinesq system in a domain $\mathbb{T} \times \mathbb{R}$. The main goal is to prove the nonlinear stability of the shear flow $(U^S,\Theta^S)=((e^{\nu…

Analysis of PDEs · Mathematics 2024-06-19 Dongfen Bian , Xueke Pu

In this paper, we prove the stability threshold of $\alpha\leq \frac13$ for 2D Boussinesq equations around the Couette flow in $\mathbb{T}\times \mathbb{R}$ with Richardson number $\gamma^2>\frac14$ and different viscosity $\nu$ and thermal…

Analysis of PDEs · Mathematics 2025-06-05 Xiaoxia Ren , Wei Dongyi

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…

Analysis of PDEs · Mathematics 2026-03-18 Qionglei Chen , Zhen Li

In this paper, we develop a stability threshold theorem for the 2D incompressible Navier-Stokes equations on the channel, supplemented with the no-slip boundary condition. The initial datum is close to the Couette flow in the following…

Analysis of PDEs · Mathematics 2025-10-21 Jacob Bedrossian , Siming He , Sameer Iyer , Linfeng Li , Fei Wang

In this paper, we study the long-time behavior of the solutions to the two-dimensional incompressible free Navier Stokes equation (without forcing) with small viscosity $\nu$, when the initial data is close to stable monotone shear flows.…

Analysis of PDEs · Mathematics 2023-06-07 Hui Li , Weiren Zhao

In this article we consider the asymptotic stability of the two-dimensional Boussinesq equations with partial dissipation near a combination of Couette flow and temperature profiles $T(y)$. As a first main result we show that if $T'$ is of…

Analysis of PDEs · Mathematics 2023-01-11 Christian Zillinger

In this paper, we investigate the asymptotic stability threshold problem for the 2-D Navier-Stokes equations in a finite channel with no-slip boundary conditions, around monotone shear flow $(U(t,y),0)$. We establish that the flow is…

Analysis of PDEs · Mathematics 2026-03-03 Zhen Li , Shunlin Shen , Zhifei Zhang

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…

Analysis of PDEs · Mathematics 2025-03-11 Ryan Arbon

In this paper, we establish the inviscid damping and enhanced dissipation estimates for the linearized Navier-Stokes system around the symmetric flow in a finite channel with the non-slip boundary condition. As an immediate consequence, we…

Analysis of PDEs · Mathematics 2025-10-22 Qi Chen , Hao Li , Shunlin Shen , Zhifei Zhang
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