Solvability of wave propagation with Debye polarization in nonlinear dielectric materials and its finite element methods approximation
Solvability of wave propagation with Debye polarization in nonlinear dielectric materials and its finite element methods approximation
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非线性介电材料中德拜偏振波传播的可解性及其有限元方法逼近
DOI:
10.1016/j.apnum.2019.07.002
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发表时间:
2019-12
影响因子:
2.8
通讯作者:
Yao Changhui
中科院分区:
文献类型:
--
作者:
Huang Qiumei;Jia Shanghui;Xu Fei;Xu Zhongwen;Yao Changhui
In this paper, we consider the wave propagation with Debye polarization in nonlinear dielectric materials. The Rothe's method is employed to derive the well-posedness of the electric fields and the polarized fields by monotonicity theorem as well as the boundedness of the two fields are established. Then, the decoupled full-discrete scheme is established with the first order approximation in time and Raviart-Thomas-Nédélec element k≥ 2 in spatial. Based on the truncated error, we present the convergent analysis with the order O (Δ t+ h s) under an a-prior L∞ assumption of numerical solutions. For k= 1, we employ the superconvergence technique to ensure the a-prior L∞ assumption. In the end, we give some numerical examples to demonstrate our theories.
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影响因子:
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通讯作者:
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DOI:
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期刊:
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