Journal of Jilin University Science Edition
Previous Articles Next Articles
LUAN Tian, LI Xiao
Received:
Online:
Published:
Contact:
Abstract: By using a Trefftz class algorithm, we gave a numerical method for solving the scattering problem of a class of timeharmonic wave by penetrable obstacle. The method was based on the leastsquares algorithm, FourierBessel functions were used to approximate the local state of the field, and a model was established by using multipole expansion to approximate the behavior of scattered field at infinity. The results show that the method is appropriate for the scatters whose domain may be multiple or even multi-connected. Moreover, it does not need to truncate the space, and high accuracy can be achieved by adding the number of the basis functions in the coarse mesh. Numerical examples are carried out to illustrate the effectiveness of the proposed algorithm.
Key words: penetrable obstacle scattering, FourierBessel function, multipole expansion, Trefftz class algorithm
CLC Number:
LUAN Tian, LI Xiao. Numerical Method for Penetrable Obstcales Scattering Problems[J].Journal of Jilin University Science Edition, 2017, 55(05): 1167-1169.
0 / / Recommend
Add to citation manager EndNote|Reference Manager|ProCite|BibTeX|RefWorks
URL: http://xuebao.jlu.edu.cn/lxb/EN/
http://xuebao.jlu.edu.cn/lxb/EN/Y2017/V55/I05/1167
Cited