National Taiwan Ocean University Institutional Repository:Item 987654321/50013
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题名: Development of a high-resolution hyperbolic model on quadratic elements
作者: W. H. Sheu
P. H. Lee
R. K. Lin
贡献者: 國立臺灣海洋大學:輪機工程學系
关键词: Taylor–Galerkin
Pure convection equation
Quadratic elements
Discontinuities
M-matrix theory
Entropy-increasing principle
日期: 2003-07
上传时间: 2018-09-07T03:31:43Z
出版者: Computer Methods in Applied Mechanics and Engineering
摘要: Abstract: This paper presents a class of Taylor–Galerkin (TG) finite element models on quadratic elements for solving a pure
convection equation which admits discontinuities. Six parameters are introduced to preserve scheme monotonicity and
control solution accuracy. In this paper we apply the M-matrix theory in the construction of monotone TG model. To
avoid making the scheme overly diffusive, the flux-corrected transport (FCT) technique of Boris and Book is applied
together with the underlying entropy-increasing principle and modified equation analysis developed for the TG models.
Reduction of post-discontinuities is the direct use of free parameters that can make the coefficients of the even and odd
derivative terms shown in the modified equation change signs alternately. Several benchmark problems are investigated
to confirm the integrity of the proposed characteristic model.
URI: http://ntour.ntou.edu.tw:8080/ir/handle/987654321/50013
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