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This paper is concerned with stochastic incompressible Navier-Stokes equations with multiplicative noise in two dimensions with respect to periodic boundary conditions. Based on the Helmholtz decomposition of the multiplicative noise,…

数值分析 · 数学 2022-11-28 Hailong Qiu

The paper is devoted to the open problem of regularization by noise of 3D Navier-Stokes equations. Opposite to several attempts made with additive noise which remained inconclusive, we show here that a suitable multiplicative noise of…

概率论 · 数学 2021-08-11 Franco Flandoli , Dejun Luo

The aim of this work is to prove an existence and uniqueness result of Kato-Fujita type for the Navier-Stokes equations, in vorticity form, in $2-D$ and $3-D$, perturbed by a gradient type multiplicative Gaussian noise (for sufficiently…

偏微分方程分析 · 数学 2019-05-08 Ionut Munteanu , Michael Roeckner

In this study, based on the variational principle and Faddeev method, we present a general framework for finding the propagating solutions of multiple interacting particles on a torus. Two different versions of multiparticle secular…

高能物理 - 格点 · 物理学 2020-03-25 Peng Guo

We consider the Navier-Stokes equation on a two dimensional torus with a random force which is white noise in time, and excites only a finite number of modes. The number of excited modes depends on the viscosity $\nu$, and grows like…

数学物理 · 物理学 2007-05-23 J. Bricmont , A. Kupiainen , R. Lefevere

We derive quantitative estimates proving the propagation of chaos for large stochastic systems of interacting particles. We obtain explicit bounds on the relative entropy between the joint law of the particles and the tensorized law at the…

偏微分方程分析 · 数学 2018-10-17 Pierre-Emmanuel Jabin , Zhenfu Wang

We derive the quantitative propagation of chaos in the sense of relative entropy for the first time for the 2D Log gas or the weakly interacting particle systems with 2D Coulomb interactions on the whole space. We resolve this problem by…

偏微分方程分析 · 数学 2024-11-25 Shuzhe Cai , Xuanrui Feng , Yun Gong , Zhenfu Wang

Through the Ginzburg-Landau and the Navier-Stokes equations, we study turbulence phenomena for viscous incompressible and compressible fluids by a second order phase transition. For this model, the velocity is defined by the sum of…

流体动力学 · 物理学 2019-12-30 Mauro Fabrizio

We consider the globally modified stochastic (hyperviscous) Navier-Stokes equations with transport noise on 3D torus. We first establish the existence and pathwise uniqueness of the weak solutions, and then show their convergence to the…

概率论 · 数学 2025-01-22 Chang Liu , Dejun Luo

We survey the recent advance in the rigorous qualitative theory of the 2d stochastic Navier-Stokes system that are relevant to the description of turbulence in two-dimensional fluids. After discussing briefly the initial-boundary value…

数学物理 · 物理学 2017-12-29 Sergei Kuksin , Armen Shirikyan

A six-dimensional Navier-Stokes equation derived by one of the authors(ST) is solved for a turbulent mixing layer to demonstrate that it has a solitary wave solution. Turbulence intensities and Reynolds' stress are calculated using this…

chao-dyn · 物理学 2007-05-23 Shunichi Tsuge , Burtsitsig Bai

The objective of this note is to present the results from the two recent papers. We study the Navier--Stokes equation on the two--dimensional torus when forced by a finite dimensional white Gaussian noise. We give conditions under which…

概率论 · 数学 2007-05-23 Martin Hairer , Jonathan C. Mattingly , Etienne Pardoux

We are concerned with the problem of global well-posedness of the 3D Navier--Stokes equations on the torus with unitary viscosity. While a full answer to this question seems to be out of reach of the current techniques, we establish a…

概率论 · 数学 2023-05-05 Franco Flandoli , Martina Hofmanová , Dejun Luo , Torstein Nilssen

Through Ginzburg-Landau and Navier-Stokes equations, we study turbulence phenomena for viscous incompresible and compressible fluids by a second order phase transition. For this model, the velocity is defined by the sum of classical and…

流体动力学 · 物理学 2018-05-18 Mauro Fabrizio

We consider a $N$-particle system interacting through the Newtonian potential with a polynomial cut-off in the presence of noise in velocity. We rigorously prove the propagation of chaos for this interacting stochastic particle system.…

偏微分方程分析 · 数学 2018-08-01 José A. Carrillo , Young-Pil Choi , Samir Salem

We consider a particle system in 1D, interacting via repulsive or attractive Coulomb forces. We prove the trajectorial propagation of molecular chaos towards a nonlinear SDE associated to the Vlasov-Poisson-Fokker-Planck equation. We obtain…

偏微分方程分析 · 数学 2015-11-16 Maxime Hauray , Samir Salem

Recently, a number of authors have investigated the conditions under which a stochastic perturbation acting on an infinite dimensional dynamical system, e.g. a partial differential equation, makes the system ergodic and mixing. In…

概率论 · 数学 2007-05-23 Jean Bricmont

A probabilistic representation formula for general systems of linear parabolic equations, coupled only through the zero-order term, is given. On this basis, an implicit probabilistic representation for the vorticity in a 3D viscous fluid…

概率论 · 数学 2007-05-23 B. Busnello , F. Flandoli , M. Romito

We consider the Navier-Stokes system in two and three space dimensions perturbed by transport noise and subject to periodic boundary conditions. The noise arises from perturbing the advecting velocity field by space-time dependent noise…

偏微分方程分析 · 数学 2018-08-02 Martina Hofmanová , James-Michael Leahy , Torstein Nilssen

We have found an infinite dimensional manifold of exact solutions of the Navier-Stokes loop equation for the Wilson loop in decaying Turbulence in arbitrary dimension $d >2$. This solution family is equivalent to a fractal curve in complex…

流体动力学 · 物理学 2023-10-26 Alexander Migdal