ON DISCONTINUOUS SOLUTIONS OF HYPERBOLIC-EQUATIONS

被引：6

作者：

ECKHOFF, KS

机构：

[1] Department of Mathematics, University of Bergen, N-5007 Bergen

来源：

COMPUTER METHODS IN APPLIED MECHANICS AND ENGINEERING | 1994年 / 116卷 / 1-4期

关键词：

D O I：

10.1016/S0045-7825(94)80013-8

中图分类号：

T [工业技术];

学科分类号：

08 ;

摘要：

A modified Fourier method which is applicable to numerical simulations of discontinuous solutions of hyperbolic equations is presented. Truncated Fourier series representations are de-truncated at every timestep by utilising step-functions in the reconstruction of the discontinuous solutions. The de-truncated expansions are used to eliminate the numerical dispersion and diffusion which normally ruin the discontinuous solutions in a few timesteps when traditional Fourier methods are applied.

引用

页码：103 / 112

页数：10

共 19 条

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[2]

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