GL Time Domain Modeling for EM Acoustic and Elastic Wave Field with Dispersion in Crystal and Porous Material
In the last few years, we have proposed electromagnetic (EM), mechanical, acoustic and ffiow GL modeling and applications in the frequency domain. In this paper, we propose GL modeling for EM, acoustic, and elastic field in aperiodic space time domain and their dispersion field in periodic space time domain, respectively. The GL modeling in this paper is based on integral equation. We, first, derive EM and acoustic integral equation in time domain. Based on these time domain integral equations, we construct GL modeling for EM, acoustic, and elastic field in aperiodic space time domain and their dispersion field in periodic lattice space time domain. The GL modeling method can fast and accurate to calculate EM, acoustic, and elastic in space time domain, in particular, can simulate the field dispersion in the periodic lattice space time domain. Similar with GL method in the frequency domain, the time domain GL method does not need to solve any large matrix, only needs to solve 6×6 and 9×9 small matrices. Moreover, the artificial boundary and absorption condition are unnecessary in the time domain GL method. The time domain GL EM, acoustic, and elastic modeling method have wide applications which are described in this paper.
Jianhua Li Ganquan Xie Lee Xie Feng Xie
GL Geophysical Laboratory,USA
国际会议
Progress in Electromagnetics Research Symposium 2008(2008年电磁学研究新进展学术研讨会)(PIERS 2008)
杭州
英文
1-9
2008-03-24（万方平台首次上网日期，不代表论文的发表时间）