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The nonconforming Morley-type virtual element method for the incompressible Navier-Stokes equations formulated in terms of the stream-function on simply connected polygonal domains (not necessarily convex) is designed. A rigorous analysis…

数值分析 · 数学 2022-12-06 D. Adak , D. Mora , A. Silgado

We develop a spectral method for solving the incompressible generalized Navier--Stokes equations in the ball with no-flux and prescribed slip boundary conditions. The algorithm achieves an optimal complexity per time step of…

数值分析 · 数学 2021-04-21 Nicolas Boullé , Jonasz Słomka , Alex Townsend

In this paper, we utilize some series and an iterative method to solve some Navier-Stokes equations with the initial conditions being some complex-valued periodic functions on $R^3$. Then a new strategy for dealing with the conjecture of…

偏微分方程分析 · 数学 2015-07-16 Tao Zhang , Alatancang Chen , Fan Bai

Based on a discontinuous Galerkin method in the spatial directions and an improved implicit-explicit pressure-correction scheme in the temporal direction, this paper discusses a fully discrete scheme for the…

数值分析 · 数学 2026-05-01 Bikram Bir , Amiya K. Pani

We consider a velocity tracking problem for the Navier-Stokes equations in a 2D-bounded domain. The control acts on the boundary through a injection-suction device and the flow is allowed to slip against the surface wall. We study the…

偏微分方程分析 · 数学 2017-06-20 Nikolai V. Chemetov , Fernanda Cipriano

A time-discretization of the stochastic incompressible Navier--Stokes problem by penalty method is analyzed. Some error estimates are derived, combined, and eventually arrive at a speed of convergence in probability of order 1/4 of the main…

数值分析 · 数学 2019-10-03 Erika Hausenblas , Tsiry Randrianasolo

In a recent work [10], we have introduced a pressure-robust Hybrid High-Order method for the numerical solution of the incompressible Navier-Stokes equations on matching simplicial meshes. Pressure-robust methods are characterized by error…

数值分析 · 数学 2026-01-22 Daniel Castanon Quiroz , Daniele A. Di Pietro

We propose a new higher-order time discretization scheme for the stochastic Navier--Stokes equations with additive noise, where its velocity and pressure approximates converge at strong rate $1.5$ in probability. The construction rests on…

数值分析 · 数学 2026-02-17 L. Banas , D. Breit , A. Chaudhary , A. Prohl

This note introduces a novel numerical analysis framework for the incompressible Navier-Stokes equations based on Besov spaces. The key contribution of this note is to establish the stability and convergence of a semi-implicit time-stepping…

数值分析 · 数学 2025-09-30 Xinyu Cheng , Zhaonan Luo , Sheng Wang

The Volume-Averaged Navier-Stokes equations are used to study fluid flow in the presence of fixed or moving solids such as packed or fluidized beds. We develop a high-order finite element solver using both forms A and B of these equations.…

数值分析 · 数学 2023-02-20 Toni El Geitani , Shahab Golshan , Bruno Blais

The developments over the last five decades concerning numerical discretisations of the incompressible Navier--Stokes equations have lead to reliable tools for their approximation: those include stable methods to properly address the…

数值分析 · 数学 2025-08-12 Dominic Breit , Andreas Prohl , Jörn Wichmann

We prove the nonlinear stability of the planar viscous shock up to a time-dependent shift for the three-dimensional (3D) compressible Navier-Stokes equations under the generic perturbations, in particular, without zero mass conditions.…

偏微分方程分析 · 数学 2022-04-21 Teng Wang , Yi Wang

This paper presents two modular grad-div algorithms for calculating solutions to the Navier-Stokes equations (NSE). These algorithms add to an NSE code a minimally intrusive module that implements grad-div stabilization. The algorithms do…

数值分析 · 数学 2018-05-09 Joseph Anthony Fiordilino , William Layton , Yao Rong

We focus on the numerical approximation of the Cahn-Hilliard type equations, and present a family of second-order unconditionally energy-stable schemes. By reformulating the equation into an equivalent system employing a scalar auxiliary…

流体动力学 · 物理学 2018-03-19 Suchuan Dong , Zhiguo Yang , Lianlei Lin

This paper studies non inf-sup stable finite element approximations to the evolutionary Navier--Stokes equations. Several local projection stabilization (LPS) methods corresponding to different stabilization terms are analyzed, thereby…

数值分析 · 数学 2017-09-27 Javier de Frutos , Bosco García-Archilla , Volker John , Julia Novo

This work presents a novel stabilization strategy for the Galerkin formulation of the incompressible Navier-Stokes equations, developed to achieve high accuracy while ensuring convergence and compatibility with high-order elements on…

数值分析 · 数学 2025-09-05 Antonio Blanco-Casares , Vishal Kumar , Daniel Mira , Oriol Lehmkuhl

The paper studies a scalar auxiliary variable (SAV) method to solve the Cahn-Hilliard equation with degenerate mobility posed on a smooth closed surface {\Gamma}. The SAV formulation is combined with adaptive time stepping and a…

数值分析 · 数学 2023-06-02 Maxim Olshanskii , Yerbol Palzhanov , Annalisa Quaini

Most classical finite element schemes for the (Navier-)Stokes equations are neither pressure-robust, nor are they inf-sup stable on general anisotropic triangulations. A lack of pressure-robustness may lead to large velocity errors,…

数值分析 · 数学 2021-01-28 Thomas Apel , Volker Kempf , Alexander Linke , Christian Merdon

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…

数值分析 · 数学 2026-02-24 Haifeng Wang , Xiaoming Wang , Min Zhang

We carry out a stability and convergence analysis of a fully discrete scheme for the time-dependent Navier-Stokes equations resulting from combining an $H(\mathrm{div}, \Omega)$-conforming discontinuous Galerkin spatial discretization, and…

数值分析 · 数学 2025-10-22 L. Beirão da Veiga , F. Dassi , S. Gómez
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