A roadmap for Generalized Plane Waves and their interpolation properties
A roadmap for Generalized Plane Waves and their interpolation properties
复制标题
广义平面波及其插值属性的路线图
DOI:
10.1007/s00211-021-01220-9
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发表时间:
2021
影响因子:
2.1
通讯作者:
Sylvand, Guillaume
中科院分区:
文献类型:
--
作者:
Imbert-Gérard, Lise-Marie;Sylvand, Guillaume
This work focuses on the study of partial differential equation (PDE) based basis function for Discontinuous Galerkin methods to solve numerically wave-related boundary value problems with variable coefficients. To tackle problems with constant coefficients, wave-based methods have been widely studied in the literature: they rely on the concept of Trefftz functions, i.e. local solutions to the governing PDE, using oscillating basis functions rather than polynomial functions to represent the numerical solution. Generalized Plane Waves (GPWs) are an alternative developed to tackle problems with variable coefficients, in which case Trefftz functions are not available. In a similar way, they incorporate information on the PDE, however they are only approximate Trefftz functions since they don’t solve the governing PDE exactly, but only an approximated PDE. Considering a new set of PDEs beyond the Helmholtz equation, we propose to set a roadmap for the construction and study of local interpolation properties of GPWs. Identifying carefully the various steps of the process, we provide an algorithm to summarize the construction of these functions, and establish necessary conditions to obtain high order interpolation properties of the corresponding basis.
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DOI:
--
发表时间:
2003
期刊:
影响因子:
--
作者:
E. Maunder
通讯作者:
E. Maunder
影响因子:
2.1
作者:
Lise-Marie Imbert-Gérard;B. Després
通讯作者:
Lise-Marie Imbert-Gérard;B. Després
影响因子:
2.4
作者:
F. Kretzschmar;S. Schnepp;Igor Tsukerman;T. Weiland
通讯作者:
T. Weiland
影响因子:
4.1
作者:
Lise
通讯作者:
Lise
DOI:
--
发表时间:
2015
期刊:
影响因子:
--
作者:
F. Kretzschmar;A. Moiola;I. Perugia;S. Schnepp
通讯作者:
S. Schnepp