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In this article, a suite of physically inconsistent properties of the Navier-Stokes equations, associated with the lack of mass diffusion and the definition of velocity, are presented. We show that these inconsistencies are consequences of…

流体动力学 · 物理学 2018-01-09 Magnus Svärd

We propose a class of semi-Lagrangian methods of high approximation order in space and time, based on spectral element space discretizations and exponential integrators of Runge-Kutta type. We discuss the extension of these methods to the…

数值分析 · 数学 2016-02-24 Elena Celledoni , Bawfeh Kingsley Kometa , Olivier Verdier

Combining the characteristic method and the local discontinuous Galerkin method with carefully constructing numerical fluxes, we design the variational formulations for the time-dependent convection-dominated Navier-Stokes equations in…

计算物理 · 物理学 2017-04-03 Shuqin Wang , Weihua Deng , Yujiang Wu , Jinyun Yuan

We establish the validity of the Euler$+$Prandtl approximation for solutions of the Navier-Stokes equations in the half plane with Dirichlet boundary conditions, in the vanishing viscosity limit, for initial data which are analytic only…

偏微分方程分析 · 数学 2022-04-13 Igor Kukavica , Trinh Nguyen , Vlad Vicol , Fei Wang

We consider the Navier-Stokes equation on a two dimensional torus with a random force, white noise in time and analytic in space, for arbitrary Reynolds number $R$. We prove probabilistic estimates for the long time behaviour of the…

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

We consider the incompressible Navier-Stokes (NS) equations on a torus, in the setting of the spaces L^2 and H^1; our approach is based on a general framework for semi- or quasi-linear parabolic equations proposed in the previous work [9].…

偏微分方程分析 · 数学 2011-02-18 Carlo Morosi , Livio Pizzocchero

In this paper, we investigate the link between kinetic equations (including Boltzmann with or without cutoff assumption and Landau equations) and the incompressible Navier-Stokes equation. We work with strong solutions and we treat all the…

偏微分方程分析 · 数学 2026-05-20 Kleber Carrapatoso , Isabelle Gallagher , Isabelle Tristani

This paper discussed the existence and uniqueness of the smoothing solution of the Navier-Stokes equations. At first, we construct the theory of the linear equations which is about the unknown four variables functions with constant…

偏微分方程分析 · 数学 2011-06-23 Jianfeng Wang

This paper presents an analytic solution of the incompressible Navier-Stokes equations as recurrence relations for the solution's derivatives, addressing the Clay Mathematics Institute's Millennium Prize problem on Navier-Stokes existence…

流体动力学 · 物理学 2025-02-28 Nathan Strange

We obtain logarithmic improvements for conditions for regularity of the Navier-Stokes equation, similar to those of Prodi-Serrin or Beale-Kato-Majda. Some of the proofs make use of a stochastic approach involving Feynman-Kac like…

偏微分方程分析 · 数学 2013-06-04 Stephen Montgomery-Smith

The conditions necessary and sufficient for the Smoothed Dissipative Particle Dynamics (SDPD) equations of motion to have a Lagrangian that can be used for deriving these equations of motion, the Helmholtz conditions, are obtained and…

生物物理 · 物理学 2026-02-04 Tatyana Kornilova , Anna Shokhina , Timothy Nerukh , Dmitry Nerukh

The derivation of the Navier-Stokes equation starting from the Liouville equation using projection techniques yields a friction term which is nonlinear in the velocity. Using the results of multilinear mode-coupling technique for…

综合物理 · 物理学 2007-11-20 J. Piest

We consider a time discretization of incompressible Navier-Stokes equations with spatial periodic boundary conditions in the vorticity-velocity formulation. The approximation is based on freezing the velocity on time subintervals resulting…

数值分析 · 数学 2020-10-12 G. N. Milstein , M. V. Tretyakov

We study the three-dimensional incompressible Navier-Stokes equations in a smooth bounded domain $\Omega$ with initial velocity $u_0$ square-integrable, divergence-free and tangent to $\partial \Omega$. We supplement the equations with the…

The pressure correction scheme is combined with interior penalty discontinuous Galerkin method to solve the time-dependent Navier-Stokes equations. Optimal error estimates are derived for the velocity in the L$^2$ norm in time and in space.…

数值分析 · 数学 2021-12-08 Rami Masri , Chen Liu , Beatrice Riviere

We present a Lagrange--Galerkin scheme free from numerical quadrature for the Navier--Stokes equations. Our idea is to use a locally linearized velocity and the backward Euler method in finding the position of fluid particle at the previous…

数值分析 · 数学 2015-05-26 Masahisa Tabata , Shinya Uchiumi

The Navier--Stokes equation in the bidimensional torus is considered, with initial velocity and forcing term in suitable Besov spaces. Results of local existence and uniqueness are proven; under further restriction on the indexes defining…

偏微分方程分析 · 数学 2009-09-29 Z. Brzezniak , B. Ferrario

In this work we study the Naiver-Stokes equations under the presence of no gravitational forces.

综合数学 · 数学 2021-09-01 Roy Burson

Different authors had received a lot of results regarding the Euler and Navier-Stokes equations. Existence and smoothness of solution for the Navier-Stokes equations in two dimensions have been known for a long time. Leray showed that the…

偏微分方程分析 · 数学 2013-09-03 A. Tsionskiy , M. Tsionskiy

In this paper, we investigate the three dimensional stationary compressible Navier-Stokes equations, and obtain Liouville type theorems if a smooth solution $(\rho, \mathbf{u})$ satisfies some suitable conditions. In particular, our results…

偏微分方程分析 · 数学 2022-05-03 Jae-Myoung Kim