A new minimum storage Runge-Kutta scheme for computational acoustics

被引:41
|
作者
Calvo, M [1 ]
Franco, JM [1 ]
Rández, L [1 ]
机构
[1] Univ Zaragoza, Dept Matemat Aplicada, Zaragoza 50009, Spain
关键词
time advancing methods; low storage RK schemes; dissipation and dispersion;
D O I
10.1016/j.jcp.2004.05.012
中图分类号
TP39 [计算机的应用];
学科分类号
081203 ; 0835 ;
摘要
A new fourth-order six-stage Runge-Kutta numerical integrator that requires 2N-storage (N is the number of degrees of freedom of the system) with low dissipation and dispersion and a relatively large stability interval is proposed. These features make it a suitable time advancing method for solving wave propagation problems in Computational Acoustics. Some numerical experiments are presented to show the favourable behaviour of the new scheme as compared with the LDD46 and LDD25 methods proposed by Staneseu and Habashi [J. Comput. Phys. 143 (1998) 674] and the standard fourth order Runge-Kutta method. (C) 2004 Elsevier Inc. All rights reserved.
引用
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页码:1 / 12
页数:12
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