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We study the motion of a particle in a random time-dependent vector field defined by the 2D Navier-Stokes system with a noise. Under suitable non-degeneracy hypotheses we prove that the empirical measures of the trajectories of the pair…

Mathematical Physics · Physics 2019-02-12 Vojkan Jaksic , Vahagn Nersesyan , Claude-Alain Pillet , Armen Shirikyan

We prove the global existence and uniqueness of strong solutions for a compressible multifluid described by the barotropic Navier-Stokes equations in dim = 1. The result holds when the diffusion coefficient depends on the pressure. It…

Mathematical Physics · Physics 2010-12-30 C. Michoski , A. Vasseur

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

The present article establishes connections between the structure of the deterministic Navier-Stokes equations and the structure of (similarity) equations that govern self-similar solutions as expected values of certain naturally associated…

Analysis of PDEs · Mathematics 2015-06-24 Radu Dascaliuc , Nicholas Michalowski , Enrique Thomann , Edward C. Waymire

We study the mixing properties of the white-forced Navier-Stokes system in the whole space $\mathbb{R}^2$. Assuming that the noise is sufficiently non-degenerate, we prove the uniqueness of stationary measure and polynomial mixing in the…

Analysis of PDEs · Mathematics 2024-10-30 Vahagn Nersesyan , Meng Zhao

R\"ockner and Zhang in [27] proved the existence of a unique strong solution to a stochastic tamed 3D Navier-Stokes equation in the whole space and for the periodic boundary case using a result from [31]. In the latter case, they also…

Analysis of PDEs · Mathematics 2020-05-20 Zdzisław Brzeźniak , Gaurav Dhariwal

We consider the Navier-Stokes system in three dimensions perturbed by a transport noise which is sufficiently smooth in space and rough in time. The existence of a weak solution was proved recently, however, as in the deterministic setting…

Analysis of PDEs · Mathematics 2024-04-16 Jorge Cardona , Martina Hofmanova , Torstein Nilssen , Nimit Rana

We prove that every Markov solution to the three dimensional Navier-Stokes equation with periodic boundary conditions driven by additive Gaussian noise is uniquely ergodic. The convergence to the (unique) invariant measure is exponentially…

Mathematical Physics · Physics 2009-11-13 Marco Romito

It is shown that Navier Stokes equation models with time dependent external forces in L2 can have singular solutions.

Analysis of PDEs · Mathematics 2016-03-22 Joerg Kampen

In this paper we study the stochastic Navier-Stokes equation with artificial compressibility. The main results of this work are the existence and uniqueness theorem for strong solutions and the limit to incompressible flow. These results…

Probability · Mathematics 2010-12-07 Utpal Manna , Jose-Luis Menaldi , Sivaguru S. Sritharan

In this paper, we rigorously derive the compressible one-fluid Navier-Stokes equation from the scaled compressible two-fluid Navier-Stokes-Maxwell equations locally in time under the assumption that the initial data are well prepared. We…

Analysis of PDEs · Mathematics 2022-03-21 Yi Peng , Huaqiao Wang

A stochastic Navier-Stokes equation with space-time Gaussian white noise is considered, having as infinitesimal invariant measure a Gaussian measure \mu_{\nu} whose covariance is given in terms of the enstrophy. Pathwise uniqueness for…

Probability · Mathematics 2016-09-07 S. Albeverio , B. Ferrario

We study the Navier-Stokes system describing the motion of a compressible viscous fluid driven by a nonlinear multiplicative stochastic force. We establish local in time existence (up to a positive stopping time) of a unique solution, which…

Analysis of PDEs · Mathematics 2016-06-20 Dominic Breit , Eduard Feireisl , Martina Hofmanova

We develop an efficient, unconditionally stable, variable step second order exponential time differencing scheme for the incompressible Navier Stokes equations in two and three spatial dimensions under periodic boundary conditions, together…

Numerical Analysis · Mathematics 2026-02-24 Haifeng Wang , Xiaoming Wang , Min Zhang

We develop mathematical methods which allow us to study asymptotic properties of solutions to the three dimensional Navier-Stokes system for incompressible fluid in the whole three dimensional space. We deal either with the Cauchy problem…

Analysis of PDEs · Mathematics 2020-12-24 Marco Cannone , Grzegorz Karch , Dominika Pilarczyk , Gang Wu

We establish the uniqueness and the asymptotic stability of the invariant measure for the two dimensional Navier Stokes equations driven by a multiplicative noise which is either bounded or with a sublinear or a linear growth. We work on an…

Probability · Mathematics 2023-07-10 Benedetta Ferrario , Margherita Zanella

In the present paper, we give some examples of stochastic differential equations which have delicateness in the Markov and strong Markov properties, the uniqueness locally in time and globally in time, and initial conditions. Moreover, we…

Probability · Mathematics 2022-09-14 Seiichiro Kusuoka

We prove existence and uniqueness of martingale solutions to a (slightly) hyperviscous stochastic Navier-Stokes equation in 2d with initial conditions absolutely continuous with respect to the Gibbs measure associated to the energy, getting…

Probability · Mathematics 2020-07-06 M. Gubinelli , M. Turra

In this paper, we establish the global existence and uniqueness of solution to $2$-D inhomogeneous incompressible Navier-Stokes equations \eqref{1.2} with initial data in the critical spaces. Precisely, under the assumption that the initial…

Analysis of PDEs · Mathematics 2023-12-08 Hammadi Abidi , Guilong Gui , Ping Zhang

We establish the existence, uniqueness and attraction properties of an ergodic invariant measure for the Boussinesq Equations in the presence of a degenerate stochastic forcing acting only in the temperature equation and only at the largest…

Analysis of PDEs · Mathematics 2013-11-15 Juraj Földes , Nathan Glatt-Holtz , Geordie Richards , Enrique Thomann