Comparisons of three kinds of plane wave methods for the Helmholtz equation and time-harmonic Maxwell equations with complex wave numbers
Comparisons of three kinds of plane wave methods for the Helmholtz equation and time-harmonic Maxwell equations with complex wave numbers
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复波数亥姆霍兹方程和时谐麦克斯韦方程的三种平面波方法比较
DOI:
10.1016/j.cam.2018.05.024
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发表时间:
2018-12
影响因子:
2.4
通讯作者:
Hu Qiya
中科院分区:
文献类型:
--
作者:
Yuan Long;Hu Qiya
In this paper we are concerned with some plane wave discretization methods of the Helmholtz equation and time-harmonic Maxwell equations with complex wave numbers. We design two new variants of the variational theory of complex rays and the ultra weak variational formulation for the discretization of these types of equations, respectively. The well posedness of the approximate solutions generated by the two methods is derived. Moreover, based on the PWLS–LSFE method introduced in Hu and Yuan (2018), we extend these two methods (VTCR method and UWVF method) combined with local spectral element to discretize nonhomogeneous Helmholtz equation and Maxwell’s equations. The numerical results show that the resulting approximate solution generated by the UWVF method is clearly more accurate than that generated by the VTCR method.
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影响因子:
--
作者:
O. Cessenat;B. Després
通讯作者:
O. Cessenat;B. Després
DOI:
10.1093/acprof:oso/9780198508885.001.0001
发表时间:
2003-06
期刊:
Proceedings of the 2006 IEEE/ASME Joint Rail Conference
影响因子:
--
作者:
P. Monk
通讯作者:
P. Monk
影响因子:
1.4
作者:
Long Yuan;Q. Hu
通讯作者:
Long Yuan;Q. Hu
影响因子:
1.7
作者:
Q. Hu;Long Yuan
通讯作者:
Q. Hu;Long Yuan
影响因子:
2.9
作者:
R. Tezaur;C. Farhat
通讯作者:
R. Tezaur;C. Farhat