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We study the long-time behavior of solutions to a stochastically driven Navier-Stokes system describing the motion of a compressible viscous fluid driven by a temporal multiplicative white noise perturbation. The existence of stationary…

概率论 · 数学 2017-03-10 Dominic Breit , Eduard Feireisl , Martina Hofmanova , Bohdan Maslowski

Exploring the possibility of describing a fluid flow via a time-reversible equation and its relevance for the fluctuations statistics in stationary turbulent (or laminar) incompressible Navier-Stokes flows.

流体动力学 · 物理学 2019-07-08 Giovanni Gallavotti

The Navier-Stokes motions in cylindrical domain with Navier boundary conditions are considered. First the existence of global regular two-dimensional solutions are proved. The solutions are bounded by the same constant for all time.…

偏微分方程分析 · 数学 2015-10-15 Wojciech Zajaczkowski

We survey results of recent activity towards studying controllability and accessibility issues for equations of dynamics of incompressible fluids controlled by low-dimensional or, degenerate, forcing. New results concerning controllability…

最优化与控制 · 数学 2007-05-23 Andrey A. Agrachev , Andrey V. Sarychev

We study a stochastic velocity tracking problem for the 2D-Navier-Stokes equations perturbed by a multiplicative Gaussian noise. From a physical point of view, the control acts through a boundary injection/suction device with uncertainty,…

偏微分方程分析 · 数学 2023-12-12 Nikolai Chemetov , Fernanda Cipriano

Consider the Navier-Stokes flow past a rotating obstacle with a general time-dependent angular velocity and a time-dependent outflow condition at infinity. After rewriting the problem on a fixed domain, one obtains a non-autonomous system…

偏微分方程分析 · 数学 2011-07-05 Matthias Geissert , Tobias Hansel

We show the global existence of a weak solution for the Navier-Stokes equations for compressible fluids with slip boundary conditions of friction type.

偏微分方程分析 · 数学 2023-06-30 Sarka Necasova , Justyna Ogorzaly , Jan Scherz

We propose inflow and outflow boundary conditions for the compressible Navier-Stokes equations and prove that they allow a priori estimates of the entropy, mass and total energy. Furthermore, we demonstrate how to approximate these boundary…

数值分析 · 数学 2025-06-27 Magnus Svärd , Anita Gjesteland

We consider the compressible Navier-Stokes system on time-dependent domains with prescribed motion of the boundary, supplemented with slip boundary conditions for the velocity. We derive the relative entropy inequality in the spirit of…

偏微分方程分析 · 数学 2016-06-16 Ondřej Kreml , Šárka Nečasová , Tomasz Piasecki

We deal with the barotropic compressible Navier-Stokes equations subject to large external potential forces with slip boundary condition in a 3D simply connected bounded domain, whose smooth boundary has a finite number of 2D connected…

偏微分方程分析 · 数学 2021-02-26 Guocai Cai , Bin Huang , Xiaoding Shi

The heat conducting compressible viscous flows are governed by the Navier-Stokes-Fourier (NSF) system. In this paper, we study the NSF system accomplished by the Newton law of cooling for the heat transfer at the boundary. On one part of…

偏微分方程分析 · 数学 2021-11-23 Luisa Consiglieri

We present in this paper a pressure correction scheme for barotropic compressible Navier-Stokes equations, which enjoys an unconditional stability property, in the sense that the energy and maximum-principle-based a priori estimates of the…

数值分析 · 数学 2010-11-01 Thierry Gallouët , Laura Gastaldo , Jean-Claude Latché , Raphaele Herbin

Liouville-type theorems for the steady incompressible Navier-Stokes system are investigated for solutions in a three-dimensional slab with either no-slip boundary conditions or periodic boundary conditions. When the no-slip boundary…

偏微分方程分析 · 数学 2022-08-22 Jeaheang Bang , Changfeng Gui , Yun Wang , Chunjing Xie

In this paper we derive a probabilistic representation of the deterministic 3-dimensional Navier--Stokes equations in the presence of spatial boundaries. The formulation in the absence of spatial boundaries was done by the authors in [Comm.…

偏微分方程分析 · 数学 2011-09-12 Peter Constantin , Gautam Iyer

This is the first in a series of papers connecting the boundary conditions for the compressible Navier-Stokes system from the Boltzmann equations with the Maxwell reflection boundary. The slip boundary conditions are formally derived from…

偏微分方程分析 · 数学 2025-06-02 Ning Jiang , Yulong Wu

We study controllability issues for the 2D Euler and Navier-Stokes (NS) systems under periodic boundary conditions. These systems describe motion of homogeneous ideal or viscous incompressible fluid on a two-dimensional torus…

最优化与控制 · 数学 2009-11-11 Andrey Agrachev , Andrey Sarychev

We consider the steady Navier-Stokes system with mixed boundary conditions, in subdomains of a holdall domain. We study, via the penalization method, its approximation properties. Error estimates, obtained using the extension operator,…

最优化与控制 · 数学 2025-08-29 Cornel Marius Murea , Dan Tiba

This paper is concerned with the existence and uniqueness of the strong solution to the incompressible Navier-Stokes equations with Navier-slip boundary conditions in a two-dimensional strip domain where the slip coefficients may not have…

偏微分方程分析 · 数学 2019-09-04 Quanrong Li , Shijin Ding

We consider the inverse problem of determining a compact Riemannian manifold with boundary from fixed time observations of the solution, restricted to a small subset in space, for the Navier-Stokes system with a local source on the…

偏微分方程分析 · 数学 2026-02-10 Yavar Kian , Lauri Oksanen , Ziyao Zhao

We consider the barotropic Navier--Stokes system describing the motion of a compressible Newtonian fluid in a bounded domain with in and out flux boundary conditions. We show that if the boundary velocity coincides with that of a rigid…

偏微分方程分析 · 数学 2020-05-06 Jan Brezina , Eduard Feireisl , Antonin Novotny