A Runge – Kutta discontinuous Galerkin conservative level set method

نویسنده

  • M. Herrmann
چکیده

We present a Runge-Kutta discontinous Galerkin (RKDG) method to solve the level set advection equation arising in the conservative level set method. We show results obtained using the method of manufactured solutions demonstrating k + 1 order accuracy for k-th order Legendre polynomial basis functions. The RKDG conservative level set method yields superior results compared to standard finite difference approaches of solving the level set equation in a number of different standard test cases, including the solid body rotation of a notched disk and the deformation of a circle respective sphere in deformation fields. To calculate the curvature of a level set iso-surface from the discontinuous level set solution, we present a scheme that is of order k − 1.

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

ثبت نام

اگر عضو سایت هستید لطفا وارد حساب کاربری خود شوید

منابع مشابه

A quadrature-free discontinuous Galerkin method for the level set equation

A quadrature free, Runge–Kutta discontinuous Galerkin method (QF-RK-DGM) is developed to solve the level set equation written in a conservative form on twoand tri-dimensional unstructured grids. We show that the DGM implementation of the level set approach brings a lot of additional benefits as compared to traditional ENO level set realizations. Some examples of computations are provided that d...

متن کامل

A Gpu Accelerated Discontinuous Galerkin Approach to Conservative Level Sets

We present a GPU-accelerated, arbitrary-order, nearly quadrature-free, Runge-Kutta (RK) discontinuous Galerkin (DG) approach to interface capturing for atomizing multiphase flows via the conservative level set (CLS) method [3, 4]. An arbitrary-order DG numerical method is utilized for both advection and reinitialization, further developing the ideas of [1] by implementing a quadrature-free appr...

متن کامل

Discontinuous Galerkin BGK Method for Viscous Flow Equations: One-Dimensional Systems

This paper is about the construction of a BGK Navier–Stokes (BGK-NS) solver in the discontinuous Galerkin (DG) framework. Since in the DG formulation the conservative variables and their slopes can be updated simultaneously, the flow evolution in each element involves only the flow variables in the nearest neighboring cells. Instead of using the semidiscrete approach in the Runge–Kutta disconti...

متن کامل

Runge-Kutta discontinuous Galerkin methods for compressible two-medium flow simulations: One-dimensional case

The Runge–Kutta discontinuous Galerkin (RKDG) method for solving hyperbolic conservation laws is a high order finite element method, which utilizes the useful features from high resolution finite volume schemes, such as the exact or approximate Riemann solvers, TVD Runge–Kutta time discretizations, and limiters. In this paper, we investigate using the RKDG finite element method for compressible...

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

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

ثبت نام

اگر عضو سایت هستید لطفا وارد حساب کاربری خود شوید

عنوان ژورنال:

دوره   شماره 

صفحات  -

تاریخ انتشار 2012