PML-FDTD method for elastic waves in cylindrical and spherical coordinates

Author

Qing Huo Lin

Author_Institution

Klipsch Sch. of Electr. & Comput. Eng., New Mexico State Univ., Las Cruces, NM, USA

Volume

2

fYear

1999

fDate

11-16 July 1999

Firstpage

1392

Abstract

A perfectly matched layer (PML) is developed for elastic waves in cylindrical and spherical coordinates using the improved scheme of complex coordinates. With the introduction of the integrated complex stretching variables, the cylindrical and spherical PML schemes require no more unknown split field components than in Cartesian coordinates. The FDTD results confirm the efficacy of the PML absorbing boundary condition.

Keywords

absorbing media; acoustic wave absorption; elastic waves; finite difference time-domain analysis; FDTD results; PML; PML-FDTD method; absorbing boundary condition; acoustic waves; borehole acoustic measurements; complex coordinates; cylindrical coordinates; elastic waves; integrated complex stretching variables; perfectly matched layer; spherical coordinates; Application software; Boundary conditions; Electromagnetic scattering; Engineering profession; Equations; Finite difference methods; Nonhomogeneous media; Perfectly matched layers; Stress; Time domain analysis;

fLanguage

English

Publisher

ieee

Conference_Titel

Antennas and Propagation Society International Symposium, 1999. IEEE

Conference_Location

Orlando, FL, USA

Print_ISBN

0-7803-5639-x

Type

conf

DOI

10.1109/APS.1999.789574

Filename

789574