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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…

Probability · Mathematics 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.

Fluid Dynamics · Physics 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.…

Analysis of PDEs · Mathematics 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…

Optimization and Control · Mathematics 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,…

Analysis of PDEs · Mathematics 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…

Analysis of PDEs · Mathematics 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.

Analysis of PDEs · Mathematics 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…

Numerical Analysis · Mathematics 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…

Analysis of PDEs · Mathematics 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…

Analysis of PDEs · Mathematics 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…

Analysis of PDEs · Mathematics 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…

Numerical Analysis · Mathematics 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…

Analysis of PDEs · Mathematics 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.…

Analysis of PDEs · Mathematics 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…

Analysis of PDEs · Mathematics 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…

Optimization and Control · Mathematics 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,…

Optimization and Control · Mathematics 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…

Analysis of PDEs · Mathematics 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…

Analysis of PDEs · Mathematics 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…

Analysis of PDEs · Mathematics 2020-05-06 Jan Brezina , Eduard Feireisl , Antonin Novotny