CESE Schemes with Numerical Dissipation

نویسندگان

چکیده

Abstract As depicted in Chap. 2 , the interface between two sub-CEs (CD Fig. 2.7 ), belongs to SE of ( j, n ). The flux F C needs be calculated through Taylor expansion at point ) toward inverse time direction. a result, scheme is reversible. This violates second law thermodynamics. Thus, non-dissipative core suffers from unphysical oscillations for practical applications.

برای دانلود باید عضویت طلایی داشته باشید

برای دانلود 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

On Some Numerical Dissipation Schemes

Several schemes for introducing an arti cial dissipation into a central di erence approximation to the Euler and Navier Stokes equations are considered. The focus of the paper is on the convective upwind and split pressure (CUSP) scheme, which is designed to support single interior point discrete shock waves. This scheme is analyzed and compared in detail with scalar dissipation and matrix diss...

متن کامل

On the Reduction of Numerical Dissipation in Central-Upwind Schemes

We study central-upwind schemes for systems of hyperbolic conservation laws, recently introduced in [13]. Similarly to staggered non-oscillatory central schemes, these schemes are central Godunov-type projection-evolution methods that enjoy the advantages of high resolution, simplicity, universality and robustness. At the same time, the central-upwind framework allows one to decrease a relative...

متن کامل

Linear Bicharacteristic Schemes Without Dissipation

This paper is concerned with developing methods for the propagation of linear waves in several space dimensions. The methods are time-reversible, and hence free from numerical dissipation. They are based on bicharacteristic forms of the governing equations, and are made possible by adopting forms of staggered storage that depend on the precise equations under consideration. Analysis is presente...

متن کامل

Numerical dissipation control in high order shock-capturing schemes for LES of low speed flows

Article history: Received 16 December 2014 Received in revised form 8 October 2015 Accepted 16 November 2015 Available online 1 December 2015

متن کامل

A note on the numerical dissipation from high-order discontinuous finite element schemes

Article history: Received 25 July 2013 Received in revised form 9 November 2013 Accepted 18 January 2014 Available online 4 February 2014

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: Engineering Applications of Computational Methods

سال: 2023

ISSN: ['2662-3374', '2662-3366']

DOI: https://doi.org/10.1007/978-981-99-0876-9_3