Multi-level hp-adaptivity: high-order mesh adaptivity without the difficulties of constraining hanging nodes
Multi-level hp-adaptivity: high-order mesh adaptivity without the difficulties of constraining hanging nodes
复制标题
多级HP自适应:高阶网格自适应,没有约束悬挂节点的困难
DOI:
10.1007/s00466-014-1118-x
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发表时间:
2015
影响因子:
4.1
通讯作者:
Schillinger
中科院分区:
文献类型:
--
作者:
Zander ;Kollmannsberger ;Schillinger
The implementation of-adaptivity is challenging ashangingnodes, edges, and faces have to be constrained to ensure compatibility of the shape functions. For this reason, most-code frameworks restrict themselves to-irregular meshes to ease the implementational effort. This work alleviates these difficulties by introducing a new formulation for high-order mesh adaptivity that provides full local-refinement capabilities at a comparably small implementational effort. Its main idea is the extension of the--method such that it allows for high-order overlay meshes yielding ahierarchical, multi-level-formulation of the Finite Element Method. This concept enables intuitive refinement and coarsening procedures, while linear independence and compatibility of the shape functions are guaranteed by construction. The proposed method is demonstrated to achieve exponential rates of convergence—both in terms of degrees of freedom and in run-time—for problems with non-smooth solutions. Furthermore, the scheme is used alongside the Finite Cell Method to simulate the heat flow around moving objects on a non-conforming background mesh and is combined with an energy-based refinement indicator for automatic-adaptivity.
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DOI:
--
发表时间:
1992
期刊:
影响因子:
--
作者:
J. Fish
通讯作者:
J. Fish
影响因子:
2.9
作者:
Z. Yang;M. Ruess;S. Kollmannsberger;A. Düster;E. Rank
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Z. Yang;M. Ruess;S. Kollmannsberger;A. Düster;E. Rank
DOI:
10.1002/nme.1620080115
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1974
影响因子:
2.9
作者:
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发表时间:
2013
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发表时间:
2000
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影响因子:
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作者:
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