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We study the so-called damped Navier-Stokes equations in the whole 2D space. The global well-posedness, dissipativity and further regularity of weak solutions of this problem in the uniformly-local spaces are verified based on the further…

偏微分方程分析 · 数学 2015-06-04 Sergey Zelik

We are concerned with the Cauchy problem of the two-dimensional (2D) nonhomogeneous incompressible Navier-Stokes equations with vacuum as far-field density. It is proved that if the initial density decays not too slow at infinity, the 2D…

偏微分方程分析 · 数学 2018-04-30 Boqiang Lv , Xiaoding Shi , Xin Zhong

In this paper, we consider the model of 3D incompressible Navier-Stokes equations and 2D supercritical Surface Quasi-Geostrophic equations with time oscillation in the nonlinear term. We obtain that there exists global smooth solution of…

偏微分方程分析 · 数学 2024-04-15 Yiran Xu , Haina Li

The nonhomogeneous Navier-Stokes equations with density-dependent viscosity is studied in three-dimensional (3D) exterior domains with nonslip or slip boundary conditions. We prove that the strong solutions exists globally in time provided…

偏微分方程分析 · 数学 2022-05-13 Guocai Cai , Boqiang Lü , Yi Peng

We construct non-unique Leray solutions of the forced Navier-Stokes equations in bounded domains via gluing methods. This demonstrates a certain locality and robustness of the non-uniqueness discovered by the authors in [1].

偏微分方程分析 · 数学 2023-09-18 Dallas Albritton , Elia Bruè , Maria Colombo

The paper studies the issue of stability of solutions to the Navier-Stokes and damped Euler systems in periodic boxes. We show that under action of fast oscillating-in- time external forces all two dimensional regular solutions converge to…

偏微分方程分析 · 数学 2016-01-19 Jacek Cyranka , Piotr B Mucha , Edriss S Titi , Piotr Zgliczyński

We study solutions to stationary Navier Stokes system in two dimensional exterior domain. We prove that any such solution with finite Dirichlet integral converges at infinity uniformly. No additional condition (on symmetry or smallness) are…

偏微分方程分析 · 数学 2019-02-20 Mikhail Korobkov , Konstantinas Pileckas , Remigio Russo

Through an adaption of the convex integration scheme in the two dimensional case, the non-uniqueness of $C^0_t L^2_x$ weak solutions is presented for the two-dimensional hypoviscous incompressible Navier-Stokes equations.

偏微分方程分析 · 数学 2019-08-27 Tianwen Luo , Peng Qu

We provide explicit time-varying feedback laws that locally stabilize the two dimensional internal controlled incompressible Navier-Stokes equations in arbitrarily small time. We also obtain quantitative rapid stabilization via stationary…

偏微分方程分析 · 数学 2020-10-27 Shengquan Xiang

We study the Boltzmann equation with external forces, not necessarily deriving from a potential, in the incompressible Navier-Stokes perturbative regime. On the torus, we establish local-in-time, for any time, Cauchy theories that are…

数学物理 · 物理学 2023-02-08 Marc Briant , Arnaud Debussche , Julien Vovelle

We propose a two-dimensional generalization of Constantin-Lax-Majda model [2]. Some results about singular solutions are given. This model might be the first step toward the singular solutions of the Euler equations. Along the same line…

偏微分方程分析 · 数学 2019-07-23 Dapeng Du

We prove that some discretization schemes for the 2D Navier-Stokes equations subject to a random perturbation converge in $L^2(\Omega)$. This refines previous results which only established the convergence in probability of these numerical…

概率论 · 数学 2022-10-11 Hakima Bessaih , Annie Millet

We study the long-time behavior of infinite-energy solutions to the incompressible Navier-Stokes equations in a two-dimensional exterior domain, with no-slip boundary conditions. The initial data we consider are finite-energy perturbations…

偏微分方程分析 · 数学 2012-12-10 Thierry Gallay

This article studies the uniqueness of the weak solution of the incompressible Navier-Stokes Equations in the 3-dimensional case. Here, the investigation is provided using two different approaches. The first (the main) result is obtained…

偏微分方程分析 · 数学 2024-05-20 Kamal N. Soltanov

In this paper we focus on the Cauchy problem for the incompressible Navier-Stokes equation with a rough external force. If the given rough external force is small, we prove the local-in-time existence of this system for any initial data…

偏微分方程分析 · 数学 2017-12-15 Di Wu

Recently Qi S. Zhang provides examples of solutions to the Navier-Stokes equations which, under suitable hypothesis, blow up in finite time. He considers axially symmetric solutions in a cylinder $D\,$ under appropriate boundary conditions…

偏微分方程分析 · 数学 2024-11-19 Hugo Beirão da Veiga , Jiaqi Yang

This paper proves the existence and uniqueness of a time-invariant measure for the 2D Navier-Stokes equations on the sphere under a random kick-force and a time-periodic deterministic force. Several examples of deterministic forces…

偏微分方程分析 · 数学 2015-05-21 Gregory Varner

We obtain the global large solutions to the compressible Navier-Stokes equations in $\mathbb{R}^2$. The solution is large in the sense that there is no smallness assumption applied to one component of the initial incompressible velocity.

偏微分方程分析 · 数学 2019-10-25 Xiaoping Zhai , Zhi-Min Chen

The Navier-Stokes motions in a box with periodic boundary conditions are considered. First the existence of global regular two-dimensional solutions is proved. The solutions are such that continuous with respect to time norms are controlled…

偏微分方程分析 · 数学 2016-06-16 Wojciech M. Zajaczkowski

This article examines the smoothness of the solution to the Navier-Stokes equation from a novel perspective. Here, the existence of the smoother solution relative to x and to the time t was shown only for a finite time. Moreover, for each…

偏微分方程分析 · 数学 2025-07-15 Kamal N. Soltanov