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arXiv 0909.0363math.NAcs.NA
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一维自由边界对流-扩散-反应问题的数值模拟

Numerical modelling of convection-diffusion-reaction problems with free boundary in 1D

Faculty of Mathematics and Physics. Comenius University Bratislava(布拉迪斯拉发康斯坦丁尼乌斯大学数学与物理学院)

Gabriela Kacurova

AI总结:

提出一种基于界面演化数值建模、固定域变换和ODE系统逼近的方法,用于求解一维自由边界对流-扩散-反应问题。

摘要:

我们讨论了一维自由边界对流-扩散-反应问题的数值方法。该方法基于界面演化的数值建模、到固定域问题的变换以及通过ODE系统进行逼近。界面演化通过相应行波解的局部形状来建模。该方法可应用于许多具有有限界面速度的自由边界问题。对于阻尼行波类型解,所提出的方法也可以近似一些具有无限界面速度的问题。在数值实验中,我们将数值解与某些问题的解析解进行了比较。

英文摘要:

We discuss a numerical method for convection-diffusion-reaction problems with a free boundary in 1D. The method is based on the numerical modelling of the interface evolution, the transformation to a fixed domain problem and the approximation by an ODE system. The interface evolution is modelled by means of the local shape of the corresponding travelling wave solution. The method can be applied to many free boundary problems with a finite speed of the interface. The presented method can also approximate some problems with an infinite speed of the interface for damped travelling wave type solutions. In the numerical experiments we compare our numerical solution with the analytical ones for some problems.

机构、总结、中文摘要均由AI分析而来,可能存在错误,请以论文正文为准。

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