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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 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

The mixed form of the Cahn-Hilliard equations is discretized by the hybridizable discontinuous Galerkin method. For any chemical energy density, existence and uniqueness of the numerical solution is obtained. The scheme is proved to be…

数值分析 · 数学 2023-02-28 Keegan L. A. Kirk , Rami Masi , Beatrice Riviere

This paper is devoted to the analysis of an energy-stable discontinuous Galerkin algorithm for solving the Cahn-Hilliard-Navier-Stokes equations within a decoupled splitting framework. We show that the proposed scheme is uniquely solvable…

数值分析 · 数学 2022-10-12 Chen Liu , Rami Masri , Beatrice Riviere

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 present and analyze a discontinuous Galerkin method for the numerical modeling of a Kelvin-Voigt thermo/poro-viscoelastic problem. We present the derivation of the model and we develop a stability analysis in the continuous setting that…

数值分析 · 数学 2025-08-01 Stefano Bonetti , Mattia Corti

This paper proposes and analyzes two fully discrete mixed interior penalty discontinuous Galerkin (DG) methods for the fourth order nonlinear Cahn-Hilliard equation. Both methods use the backward Euler method for time discretization and…

数值分析 · 数学 2015-02-24 Xiaobing Feng , Yukun Li , Yulong Xing

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

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

In this paper, we introduce novel discontinuous Galerkin (DG) schemes for the Cahn-Hilliard equation, which arises in many applications. The method is designed by integrating the mixed DG method for the spatial discretization with the…

数值分析 · 数学 2021-01-11 Hailiang Liu , Peimeng Yin

We present a detailed description and verification of a discontinuous Galerkin finite element method (DG) for the multi-component chemically reacting compressible Navier-Stokes equations that retains the desirable properties of DG, namely…

计算物理 · 物理学 2020-10-28 Ryan F. Johnson , Andrew D. Kercher

We propose a hydridizable discontinuous Galerkin (HDG) method for solving the Cahn-Hilliard equation. The temporal discretization can be based on either the backward Euler method or the convex-splitting method. We show that the fully…

数值分析 · 数学 2024-12-20 Gang Chen , Daozhi Han , John Singler , Yangwen Zhang

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

This paper deals with a fully discrete numerical scheme for the incompressible Chemotaxis(Keller-Segel)-Navier-Stokes system. Based on a discontinuous Galerkin finite element scheme in the spatial directions, a semi-implicit first-order…

数值分析 · 数学 2026-04-16 Bikram Bir , Harsha Hutridurga , Amiya K. Pani

In this paper we propose a new spatially high order accurate semi-implicit discontinuous Galerkin (DG) method for the solution of the two dimensional incompressible Navier-Stokes equations on staggered unstructured curved meshes. While the…

数值分析 · 数学 2014-07-07 Maurizio Tavelli , Michael Dumbser

We propose a structure-preserving discontinuous Galerkin scheme for the Cahn--Hilliard equations with degenerate mobility based on the Symmetric Weighted Interior Penalty formulation. By evaluating the mobility at cell averages rather than…

数值分析 · 数学 2026-04-03 Jimmy Kornelije Gunnarsson , Robert Klöfkorn

Discontinuous Galerkin methods of higher order are applied as temporal discretizations for the transient Navier--Stokes equations. The spatial discretization based on inf-sup stable pairs of finite element spaces is stabilised using a…

数值分析 · 数学 2019-10-29 Naveed Ahmed , Gunar Matthies

An energy stable conservative method is developed for the Cahn--Hilliard (CH) equation with the degenerate mobility. The CH equation is discretized in space with the mass conserving symmetric interior penalty discontinuous Galerkin (SIPG)…

数值分析 · 数学 2017-12-15 Bülent Karasözen , Ayşe Sarıaydın Filibelioğlu , Murat Uzunca

We develop an entropy stable two-phase incompressible Navier--Stokes/Cahn--Hilliard discontinuous Galerkin (DG) flow solver method. The model poses the Cahn-Hilliard equation as the phase field method, a skew-symmetric form of the momentum…

数值分析 · 数学 2020-04-22 Juan Manzanero , Gonzalo Rubio , David A. Kopriva , Esteban Ferrer , Eusebio Valero

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
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