中文
相关论文

相关论文: Semi-implicit discontinuous Galerkin methods for t…

200 篇论文

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

In this paper we propose a novel arbitrary high order accurate semi-implicit space-time DG method for the solution of the three-dimensional incompressible Navier-Stokes equations on staggered unstructured curved tetrahedral meshes. As…

数值分析 · 数学 2016-06-22 Maurizio Tavelli , Michael Dumbser

In this paper we propose a novel arbitrary high order accurate semi-implicit space-time discontinuous Galerkin method for the solution of the two dimensional incompressible Navier-Stokes equations on staggered unstructured triangular…

数值分析 · 数学 2014-12-04 Maurizio Tavelli , Michael Dumbser

We propose a new arbitrary high order accurate semi-implicit space-time discontinuous Galerkin (DG) method for the solution of the two and three dimensional compressible Euler and Navier-Stokes equations on staggered unstructured curved…

数值分析 · 数学 2017-05-24 Maurizio Tavelli , Michael Dumbser

A new high order accurate staggered semi-implicit space-time discontinuous Galerkin (DG) method is presented for the simulation of viscous incompressible flows on unstructured triangular grids in two space dimensions. The staggered DG…

数值分析 · 数学 2020-10-09 Francesco Lohengrin Romeo , Michael Dumbser , Maurizio Tavelli

In this paper two new families of arbitrary high order accurate spectral DG finite element methods are derived on staggered Cartesian grids for the solution of the inc.NS equations in two and three space dimensions. Pressure and velocity…

数值分析 · 数学 2016-12-06 Francesco Fambri , Michael Dumbser

A new high order accurate semi-implicit space-time Discontinuous Galerkin method on staggered grids, for the simulation of viscous incompressible flows on two-dimensional domains is presented. The designed scheme is of the Arbitrary…

数值分析 · 数学 2020-03-17 Francesco Lohengrin Romeo

We propose a new family of high order staggered semi-implicit discontinuous Galerkin (DG) methods for the simulation of natural convection problems. Assuming small temperature fluctuations, the Boussinesq approximation is valid and the flow…

计算物理 · 物理学 2019-12-05 Saray Busto , Maurizio Tavelli , Walter Boscheri , Michael Dumbser

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

In this paper we present a new high order semi-implicit DG scheme on two-dimensional staggered triangular meshes applied to different nonlinear systems of hyperbolic conservation laws such as advection-diffusion models, incompressible…

数值分析 · 数学 2024-02-13 M. Tavelli , W. Boscheri

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 article investigates matrix-free higher-order discontinuous Galerkin discretizations of the Navier--Stokes equations for incompressible flows with variable viscosity. The viscosity field may be prescribed analytically or governed by a…

计算工程、金融与科学 · 计算机科学 2025-11-04 Richard Schussnig , Niklas Fehn , Douglas Ramalho Queiroz Pacheco , Martin Kronbichler

The present paper deals with the numerical solution of the incompressible Navier-Stokes equations using high-order discontinuous Galerkin (DG) methods for discretization in space. For DG methods applied to the dual splitting projection…

数值分析 · 数学 2017-10-25 Niklas Fehn , Wolfgang A. Wall , Martin Kronbichler

In this paper we propose a new high order accurate space-time DG finite element scheme for the solution of the linear elastic wave equations in first order velocity-stress formulation in two and three-space dimensions on staggered…

数值分析 · 数学 2018-05-09 Maurizio Tavelli , Michael Dumbser

We introduce an immersed high-order discontinuous Galerkin method for solving the compressible Navier-Stokes equations on non-boundary-fitted meshes. The flow equations are discretised with a mixed discontinuous Galerkin formulation and are…

数值分析 · 数学 2020-01-08 Hong Xiao , Eky Febrianto , Qiaoling Zhang , Fehmi Cirak

We present a GPU-accelerated version of a high-order discontinuous Galerkin discretization of the unsteady incompressible Navier-Stokes equations. The equations are discretized in time using a semi-implicit scheme with explicit treatment of…

数值分析 · 数学 2018-05-08 Ali Karakus , Noel Chalmers , Kasia Swirydowicz , Timothy Warburton

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 present a Discontinuous Galerkin (DG) solver for the compressible Navier-Stokes system, designed for applications of technological and industrial interest in the subsonic region. More precisely, this work aims to exploit the…

数值分析 · 数学 2025-08-26 Spiros Zafeiris , Emmanuil H. Georgoulis , George Papadakis

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

The accurate numerical simulation of high Reynolds number incompressible flows is a challenging topic in computational fluid dynamics. Classical inf-sup stable methods like the Taylor-Hood element or only $L^2$-conforming discontinuous…

数值分析 · 数学 2019-12-24 Marian Piatkowski , Peter Bastian
‹ 上一页 1 2 3 10 下一页 ›