Multi-layer non-hydrostatic free surface modelling using the discontinuous Galerkin method

نویسندگان
چکیده

برای دانلود رایگان متن کامل این مقاله و بیش از 32 میلیون مقاله دیگر ابتدا ثبت نام کنید

اگر عضو سایت هستید لطفا وارد حساب کاربری خود شوید

منابع مشابه

Discontinuous Galerkin Method for Linear Free-Surface Gravity Waves

• Weak formulation: – Involves a typical primal DG formulation for the Laplace equation (see Arnold et al. (2002)). – Adopt the numerical flux proposed by Brezzi et al. (1999). – Second order accurate time discretization is used for the time derivative in the free surface boundary condition (Van der Vegt and Tomar (2005)). • Finite element discretization results in a symmetric and positive defi...

متن کامل

A Level Set Discontinuous Galerkin Method for Free Surface Flows

We present a discontinuous Galerkin method on a fully unstructured grid for the modeling of unsteady incompressible fluid flows with free surfaces. The surface is modeled by embedding and represented by a levelset. We discuss the discretization of the flow equations and the level set equation as well a various ways of advancing the equations in time using velocity projection techniques. The eff...

متن کامل

Aiaa 9993309 Eecient Implementations of the Quadrature-free Discontinuous Galerkin Method Efficient Implementations of the Quadrature-free Discontinuous Galerkin Method

The e ciency of the quadrature-free form of the discontinuous Galerkin method in two dimensions, and brie y in three dimensions, is examined. Most of the work for constant-coe cient, linear problems involves the volume and edge integrations, and the transformation of information from the volume to the edges. These operations can be viewed as matrix-vector multiplications. Many of the matrices a...

متن کامل

An Application of the Quadrature-free Discontinuous Galerkin Method

The process of generating a block-structured mesh with the smoothness required for high-accuracy schemes is still a time-consuming process often measured in weeks or months. Unstructured grids about complex geometries are more easily generated, and for this reason, methods using unstructured grids have gained favor for aerodynamic analyses. The discontinuous Galerkin (DG) method is a compact ni...

متن کامل

A discontinuous Galerkin method for cohesive zone modelling

We propose a discontinuous finite element method for small strain elasticity allowing for cohesive zone modeling. The method yields a seamless transition between the discontinuous Galerkin method and classical cohesive zone modeling. Some relevant numerical examples are presented.

متن کامل

ذخیره در منابع من


  با ذخیره ی این منبع در منابع من، دسترسی به آن را برای استفاده های بعدی آسان تر کنید

ژورنال

عنوان ژورنال: Ocean Modelling

سال: 2019

ISSN: 1463-5003

DOI: 10.1016/j.ocemod.2019.01.003