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In the first part of this paper, uniqueness of strong solution is established for the Vlasov-unsteady Stokes problem in 3D. The second part deals with a semi discrete scheme, which is based on the coupling of discontinuous Galerkin…

数值分析 · 数学 2024-12-17 Harsha Hutridurga , Krishan Kumar , Amiya K. Pani

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

We study the 2D Navier-Stokes equation with transport noise subject to periodic boundary conditions. Our main result is an error estimate for the time-discretisation showing a convergence rate of order (up to) 1/2. It holds with respect to…

数值分析 · 数学 2024-10-21 Dominic Breit , Thamsanqa Castern Moyo , Andreas Prohl , Jörn Wichmann

In this paper we consider fully discrete approximations with inf-sup stable mixed finite element methods in space to approximate the Navier-Stokes equations. A continuous downscaling data assimilation algorithm is analyzed in which…

数值分析 · 数学 2019-04-15 Bosco García-Archilla , Julia Novo

Error bounds for fully discrete schemes for the evolutionary incompressible Navier--Stokes equations are derived in this paper. For the time integration we apply BDF-$q$ methods, $q\le 5$, for which error bounds for $q\ge 3$ cannot be found…

数值分析 · 数学 2025-06-23 Bosco García-Archilla , V. John , Julia Novo

Split form schemes for Euler and Navier-Stokes equations are useful for computation of turbulent flows due to their better robustness. This is because they satisfy additional conservation properties of the governing equations like kinetic…

数值分析 · 数学 2021-05-03 Vikram Singh , Praveen Chandrashekar

This work proposes an efficient, linear, and fully decoupled pressure-correction scheme for the 2D stochastic Navier-Stokes equations with multiplicative noise and Dirichlet boundary condition. Leveraging the auxiliary variable approach,…

数值分析 · 数学 2025-11-20 Can Huang , Weiwen Wang , Chuanju Xu

We present here a general method based on the investigation of the relative energy of the system, that provides an unconditional error estimate for the approximate solution of the barotropic Navier Stokes equations obtained by time and…

数值分析 · 数学 2015-04-14 Thierry Gallouet , Raphaele Herbin , David Maltese , Antonin Novotny

We present in this paper a pressure correction scheme for barotropic compressible Navier-Stokes equations, which enjoys an unconditional stability property, in the sense that the energy and maximum-principle-based a priori estimates of the…

数值分析 · 数学 2010-11-01 Thierry Gallouët , Laura Gastaldo , Jean-Claude Latché , Raphaele Herbin

In this paper, we propose a novel family of high-order numerical schemes for the gradient flow models based on the scalar auxiliary variable (SAV) approach, which is named the high-order scalar auxiliary variable (HSAV) method. The newly…

数值分析 · 数学 2019-07-10 Yuezheng Gong , Jia Zhao , Qi Wang

We analyze two fully time-discrete numerical schemes for the incompressible Navier-Stokes equations posed on evolving surfaces in $\mathbb{R}^3$ with prescribed normal velocity using the evolving surface finite element method (ESFEM). We…

数值分析 · 数学 2025-12-15 Charles M. Elliott , Achilleas Mavrakis

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 present a numerical method for two-phase incompressible Navier-Stokes equation with jump discontinuity in the normal component of the stress tensor and in the material properties. Although the proposed method is only first-order…

计算物理 · 物理学 2021-08-25 Hyuntae Cho , Myungjooo Kang

This paper presents and analyzes a fast, robust, efficient, and optimally accurate fully discrete splitting algorithm for the Uncertainty Quantification (UQ) of parameterized Stochastic Navier-Stokes Equations (SNSEs) flow problems those…

We study well-posedness of a velocity-vorticity formulation of the Navier--Stokes equations, supplemented with no-slip velocity boundary conditions, a no-penetration vorticity boundary condition, along with a natural vorticity boundary…

偏微分方程分析 · 数学 2017-08-09 Maxim A. Olshanskii , Leo G. Rebholz , Abner J. Salgado

In this paper we present extensions of the schemes proposed in \cite{GM14} that lead to a decoupling of the velocity components in the momentum equation. The new schemes reduce the solution of the incompressible Navier-Stokes equations to a…

数值分析 · 数学 2016-02-23 Jean-Luc Guermond , Peter Minev

The hydrostatic equilibrium state is the consequence of the exact hydrostatic balance between hydrostatic pressure and external force. Standard finite volume or finite difference schemes cannot keep this balance exactly due to their…

流体动力学 · 物理学 2020-08-26 Songze Chen , Zhaoli Guo , Kun Xu

We propose first- and second-order time discretization schemes for the coupled Cahn--Hilliard--Navier--Stokes model, leveraging the incremental viscosity splitting (IVS) method. The schemes combine the scalar auxiliary variable method and…

数值分析 · 数学 2025-08-05 Baolin Kuang , Hongfei Fu , Xiaoli Li

High-order time-stepping schemes are crucial for simulating incompressible fluid flows due to their ability to capture complex turbulent behavior and unsteady motion. In this work, we propose a third-order accurate numerical scheme for the…

数值分析 · 数学 2025-12-22 Kelong Cheng , Jingwei Sun , Hong Zhang

The unsteady Micropolar Navier-Stokes Equations (MNSE) are a system of parabolic partial differential equations coupling linear velocity and pressure with angular velocity: material particles have both translational and rotational degrees…

数值分析 · 数学 2013-03-29 Ricardo H. Nochetto , Abner J. Salgado , Ignacio Tomas