Parameter multi-domain hp' empirical interpolation

Parameter multi-domain hp' empirical interpolation
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DOI:
10.1002/nme.3327
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发表时间:
2012-04-27
影响因子:
2.9
通讯作者:
Stamm, Benjamin
Stamm, Benjamin
中科院分区:
工程技术3区
文献类型:
--
作者:
Eftang, Jens L.;Stamm, Benjamin

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本文介绍了经验插值法(EIM)的两种参数多域hp技术。在这两种方法中,我们都将原始参数域划分为参数子域:h-细化。我们在每个子域中独立地应用标准EIM来产生局部(在参数中)近似空间:p-细化。进一步,对于一个特别简单的情况,我们引入了划分过程的先验收敛理论。我们通过两个数值例子表明,我们的方法显著降低了EIM近似空间维数,因此显著地?减少与EIM近似相关的计算成本。版权所有:John Wiley & Sons, Ltd
In this paper, we introduce two parameter multi-domain hp techniques for the empirical interpolation method (EIM). In both approaches, we construct a partition of the original parameter domain into parameter subdomains: h-refinement. We apply the standard EIM independently within each subdomain to yield local (in parameter) approximation spaces: p-refinement. Further, for a particularly simple case, we introduce a priori convergence theory for the partition procedure. We show through two numerical examples that our approaches provide significant reduction in the EIM approximation space dimension and thus significantly?reduce the computational cost associated with EIM approximations. Copyright (C) 2012 John Wiley & Sons, Ltd.