A free-Lagrange finite element method using space-time elements

Peter Hansbo

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A free-Lagrange finite element method using space-time elements

机译：使用时空元素的自由拉格朗日有限元方法

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We consider the construction and implementation of a 'free-Lagrange finite element method, where local mesh modifications can be introduced during computation. The method is based on the use of space-time oriented meshes, with the space-time elements aligned along the (approximate) characteristics. In particular. we address the problem of mass conservation in transferring data between different grids. Numerical examples range from convection diffusion to incompressible flow in domains with moving parts.

机译：我们考虑“自由拉格朗日”有限元方法的构造和实现，其中可以在计算过程中引入局部网格修改。该方法基于使用面向时空的网格，使时空元素沿（近似）特征对齐。特别是。我们解决了在不同网格之间传输数据时的质量守恒问题。数值示例的范围从对流扩散到具有运动部件的区域中的不可压缩流。

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《Computer Methods in Applied Mechanics and Engineering》 |2000年第3期|p.347-361|共15页
作者
Peter Hansbo;
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收录信息美国《科学引文索引》(SCI);美国《工程索引》(EI);
原文格式 PDF
正文语种 eng
中图分类自动化基础理论;工程基础科学;
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A free-Lagrange finite element method using space-time elements

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