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In this paper, we design and analyze staggered discontinuous Galerkin methods of arbitrary polynomial orders for the stationary Navier-Stokes equations on polygonal meshes. The exact divergence-free condition for the velocity is satisfied…

数值分析 · 数学 2021-07-21 Dohyun Kim , Lina Zhao , Eric Chung , Eun-Jae Park

We develop a Bayesian methodology for numerical solution of the incompressible Navier--Stokes equations with quantified uncertainty. The central idea is to treat discretized Navier--Stokes dynamics as a state-space model and to view…

统计计算 · 统计学 2026-02-04 Nicholas Polson , Vadim Sokolov

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

This paper is concerned with geometric regularity criteria for the Navier-Stokes equations in $\mathbb{R}^3_{+}\times (0,T)$ with no-slip boundary condition, with the assumption that the solution satisfies the `ODE blow-up rate' Type I…

偏微分方程分析 · 数学 2019-09-04 Tobias Barker , Christophe Prange

This paper studies inf-sup stable finite element discretizations of the evolutionary Navier--Stokes equations with a grad-div type stabilization. The analysis covers both the case in which the solution is assumed to be smooth and…

数值分析 · 数学 2017-05-29 Javier de Frutos , Bosco García-Archilla , Volker John , Julia Novo

A well-known unsolved problem (in the classical theory of fluid mechanics) is to identify a set of initial velocities, which may depend on the viscosity, the body forces and possibly the boundary of the fluid that will allow global in time…

数学物理 · 物理学 2007-05-23 Tepper L Gill , Woodford W. Zachary

In this paper, we develop a second-order, fully decoupled, and energy-stable numerical scheme for the Cahn-Hilliard-Navier-Stokes model for two phase flow with variable density and viscosity. We propose a new decoupling Constant Scalar…

数值分析 · 数学 2024-10-22 Jinpeng Zhang , Li Luo , Xiaoping Wang

In this paper we consider discontinuous Galerkin (DG) methods for the incompressible Navier-Stokes equations in the framework of projection methods. In particular we employ symmetric interior penalty DG methods within the second-order…

数值分析 · 数学 2017-11-27 Marian Piatkowski , Steffen Müthing , Peter Bastian

We introduce a collection of benchmark problems in 2D and 3D (geometry description and boundary conditions), including simple cases with known analytic solution, classical experimental setups, and complex geometries with fabricated…

计算工程、金融与科学 · 计算机科学 2021-12-13 Zizhou Huang , Teseo Schneider , Minchen Li , Chenfanfu Jiang , Denis Zorin , Daniele Panozzo

In this paper we analyze a finite element method applied to a continuous downscaling data assimilation algorithm for the numerical approximation of the two and three dimensional Navier-Stokes equations corresponding to given measurements on…

数值分析 · 数学 2019-03-05 García-Archilla , Julia Novo , Edriss S. Titi

In geophysical flows such as large-scale ocean dynamics, the vertical viscosity is often much smaller than the horizontal viscosity. This anisotropy makes it natural to ask whether solutions of the full anisotropic compressible…

偏微分方程分析 · 数学 2026-05-25 Jincheng Gao , Lianyun Peng , Jiahong Wu , Zheng-an Yao

In this paper, we propose a unified numerical framework for the time-dependent incompressible Navier--Stokes equation which yields the $H^1$-, $H(\text{div})$-conforming, and discontinuous Galerkin methods with the use of different viscous…

数值分析 · 数学 2020-11-16 Xi Chen , Yuwen Li , Corina Drapaca , John Cimbala

Approximation of the marginal distribution of the solution of the stochastic Navier-Stokes equations on the two-dimensional torus by high order numerical methods is considered. The corresponding rates of convergence are obtained for a…

数值分析 · 数学 2011-05-16 Philipp Doersek

In this work, we describe, analyze, and implement a pseudospectral quadrature method for a global computer modeling of the incompressible surface Navier-Stokes equations on the rotating unit sphere. Our spectrally accurate numerical error…

数值分析 · 数学 2010-09-20 M. Ganesh , Q. T. Le Gia , I. H. Sloan

We prove that a popular classical implicit-explicit scheme for the 2D incompressible Navier--Stokes equations that treats the viscous term implicitly while the nonlinear advection term explicitly is long time stable provided that the time…

数值分析 · 数学 2011-05-25 Sigal Gottlieb , Florentina Tone , Cheng Wang , Xiaoming Wang , Djoko Wirosoetisno

In this paper, we deal with the convergence of an iterative scheme for the 2-D stochastic Navier-Stokes Equations on the torus suggested by the Lie-Trotter product formulas for stochastic differential equations of parabolic type. The…

概率论 · 数学 2022-10-13 Hakima Bessaih , Zdzislaw Brzezniak , Annie Millet

An efficient and accurate finite-element algorithm is described for the numerical solution of the incompressible Navier-Stokes (INS) equations. The new algorithm that solves the INS equations in a velocity-pressure reformulation is based on…

数值分析 · 数学 2020-02-19 Longfei Li

We apply a composite idea of semi-discrete finite difference approximation in time and Galerkin finite element method in space to solve the Navier-Stokes equations with Caputo derivative of order 0 < {\alpha} < 1. The stability properties…

数值分析 · 数学 2018-02-28 Guang-an Zou , Yong Zhou , Bashir Ahmad , Ahmed Alsaedi

We study existence and stability of steady solutions of the isentropic compressible Navier-Stokes equations on a finite interval with non characteristic boundary conditions, for general not necessarily small-amplitude data. We show that…

偏微分方程分析 · 数学 2019-01-08 Benjamin Melinand , Kevin Zumbrun

We consider error estimates for the fully discretized instationary Navier-Stokes problem. For the spatial approximation we use conforming inf-sup stable finite element methods in conjunction with grad-div and local projection stabilization…

数值分析 · 数学 2016-09-06 Daniel Arndt , Helene Dallmann , Gert Lube