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相关论文: A hybridizable discontinuous Galerkin method for t…

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We present a strongly conservative and pressure-robust hybridizable discontinuous Galerkin method for the coupled time-dependent Navier-Stokes and Darcy problem. We show existence and uniqueness of a solution and present an optimal a priori…

数值分析 · 数学 2023-03-20 A. Cesmelioglu , J. J. Lee , S. Rhebergen

In this paper we present a hybridizable discontinuous Galerkin method for the time-dependent Navier-Stokes equations coupled to the quasi-static poroelasticity equations via interface conditions. We determine a bound on the data that…

数值分析 · 数学 2023-08-31 Aycil Cesmelioglu , Jeonghun J. Lee , Sander Rhebergen

This paper analyzes a class of globally divergence-free (and therefore pressure-robust) hybridizable discontinuous Galerkin (HDG) finite element methods for stationary Navier-Stokes equations. The methods use the…

数值分析 · 数学 2022-04-08 Gang Chen , Xiaoping Xie

We introduce a hybridizable discontinuous Galerkin method for the incompressible Navier--Stokes equations for which the approximate velocity field is pointwise divergence-free. The method builds on the method presented by Labeur and Wells…

数值分析 · 数学 2023-07-04 Sander Rhebergen , Garth N. Wells

We introduce a hybridized discontinuous Galerkin method for the incompressible Reynolds Averaged Navier-Stokes equations coupled with the Spalart-Allmaras one equation turbulence model. With a special choice of velocity and pressure spaces…

数值分析 · 数学 2024-12-20 Eric L. Peters , John A. Evans

We present a finite element method for the incompressible Navier--Stokes problem that is locally conservative, energy-stable and pressure-robust on time-dependent domains. To achieve this, the space--time formulation of the Navier--Stokes…

数值分析 · 数学 2023-07-06 Tamas L. Horvath , Sander Rhebergen

We propose a linearized semi-implicit and decoupled finite element method for the incompressible Navier--Stokes equations with variable density. Our method is fully discrete and shown to be unconditionally stable. The velocity equation is…

数值分析 · 数学 2021-12-28 Buyang Li , Weifeng Qiu , ZongZe Yang

A hybrid method for the incompressible Navier--Stokes equations is presented. The method inherits the attractive stabilizing mechanism of upwinded discontinuous Galerkin methods when momentum advection becomes significant, equal-order…

计算工程、金融与科学 · 计算机科学 2012-11-19 Robert Jan Labeur , Garth N. Wells

We present a high-order hybridized discontinuous Galerkin (HDG) method for the fully coupled time-dependent Stokes-Darcy-transport problem where the fluid viscosity and source/sink terms depend on the concentration and the…

数值分析 · 数学 2023-07-07 Aycil Cesmelioglu , Dinh Dong Pham , Sander Rhebergen

We present analysis of two lowest-order hybridizable discontinuous Galerkin methods for the Stokes problem, while making only minimal regularity assumptions on the exact solution. The methods under consideration have previously been shown…

数值分析 · 数学 2023-07-07 Aaron Baier-Reinio , Sander Rhebergen , Garth N. Wells

In this paper we present an efficient discretization method for the solution of the unsteady incompressible Navier-Stokes equations based on a high order (Hybrid) Discontinuous Galerkin formulation. The crucial component for the efficiency…

数值分析 · 数学 2016-06-29 Christoph Lehrenfeld , Joachim Schöberl

A discontinuous Galerkin pressure correction numerical method for solving the incompressible Navier-Stokes equations is formulated and analyzed. We prove unconditional stability of the propose scheme. Convergence of the discrete velocity is…

数值分析 · 数学 2021-09-24 Rami Masri , Chen Liu , Beatrice Riviere

In this paper, we propose a new numerical scheme for the coupled Stokes-Darcy model with Beavers-Joseph-Saffman interface condition. We use the weak Galerkin method to discretize the Stokes equation and the mixed finite element method to…

数值分析 · 数学 2021-03-02 Hui Peng , Qilong Zhai , Ran Zhang , Shangyou Zhang

We introduce and analyze a space-time hybridized discontinuous Galerkin method for the evolutionary Navier--Stokes equations. Key features of the numerical scheme include point-wise mass conservation, energy stability, and pressure…

数值分析 · 数学 2023-07-07 Keegan L. A. Kirk , Tamás L. Horváth , Sander Rhebergen

A family of weak Galerkin finite element discretization is developed for solving the coupled Darcy-Stokes equation. The equation in consideration admits the Beaver-Joseph-Saffman condition on the interface. By using the weak Galerkin…

数值分析 · 数学 2014-07-22 Wenbin Chen , Fang Wang , Yanqiu Wang

In this paper, we develop and analyze a novel numerical scheme for the steady incompressible Navier-Stokes equations by the weak Galerkin methods. The divergence-preserving velocity reconstruction operator is employed in the discretization…

数值分析 · 数学 2020-11-24 Lin Mu

We present and analyze a new embedded--hybridized discontinuous Galerkin finite element method for the Stokes problem. The method has the attractive properties of full hybridized methods, namely an $H({\rm div})$-conforming velocity field,…

数值分析 · 数学 2023-07-06 Sander Rhebergen , Garth N. Wells

We propose and analyze a finite element method for a semi-stationary Stokes system modeling compressible fluid flow subject to a Navier-slip boundary condition. The velocity (momentum) equation is approximated by a mixed finite element…

数值分析 · 数学 2009-04-07 Kenneth H. Karlsen , Trygve K. Karper

Stability and error analysis of a hybridized discontinuous Galerkin finite element method for Stokes equations is presented. The method is locally conservative, and for particular choices of spaces the velocity field is point-wise…

数值分析 · 数学 2018-02-01 Sander Rhebergen , Garth N. Wells

We present an embedded-hybridizable discontinuous Galerkin finite element method for the total pressure formulation of the quasi-static poroelasticity model. Although the displacement and the Darcy velocity are approximated by discontinuous…

数值分析 · 数学 2022-07-27 Aycil Cesmelioglu , Jeonghun J. Lee , Sander Rhebergen
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