A Posteriori Element-wise Error Quantification for FEM Solvers Using Higher Order Basis Functions

A Posteriori Element-wise Error Quantification for FEM Solvers Using Higher Order Basis Functions
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使用高阶基函数的 FEM 求解器的后验元素误差量化

DOI:
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发表时间:
2018
期刊:
2018 IEEE International Symposium on Antennas and Propagation & USNC/URSI National Radio Science Meeting
影响因子:
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通讯作者:
T. Butler
T. Butler
中科院分区:
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文献类型:
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作者:
C. Key;A. Smull;B. Notaroš;D. Estep;T. Butler

文献摘要

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我们提出了利用伴随算子和对偶来量化计算电磁求解器的数值误差的方法。概述了伴随算子的概念,并进一步介绍了伴随问题在正解数值误差分析中的应用。我们给出了一个用高阶有限元方法求解一维板散射问题的单元基础上对总误差的贡献的例子。
We present methods for quantification of numerical error for computational electromagnetic solvers using adjoint operators and duality. We outline the concept of adjoint operators and further introduce applications of the adjoint problem toward analyzing numerical error of forward solutions. We give an illustrative example of contribution to the total error on an element-wise basis for a 1-D slab scattering problem solved by a higher-order finite element method.