Boussinesq方程的线性化数值格式

A. G. Bratsos, Ch. Tsitouras, D. G. Natsis
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引用次数: 42

摘要

对Boussinesq方程数值解的参数有限差分格式应用了两种不同的线性化格式。在第一种线性化格式下,方程的非线性项被替换为适当的值,而在第二种格式下,我们使用泰勒展开。分析了两种方案的局部截断误差、稳定性和收敛性。实验结果对参考文献中已知的单孤子波和双孤子波的精度进行了检验。(©2005 WILEY-VCH Verlag GmbH &KGaA公司,Weinheim)
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Linearized numerical schemes for the Boussinesq equation

Two different linearized schemes are applied to a parametric finite-difference scheme concerning the numerical solution of the Boussinesq equation. At the first linearized scheme the nonlinear term of the equation is substituted by an appropriate value, while at the second scheme we use Taylor's expansion. Both schemes are analyzed for local truncation error, stability and convergence. The results of the experiments are examined for their accuracy for the single and the double-soliton waves to known from the bibliography numerical schemes. (© 2005 WILEY-VCH Verlag GmbH & Co. KGaA, Weinheim)

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