The rotated Cartesian coordinate method to remove the axial singularity of cylindrical coordinates in finite‐difference schemes for elastic and viscoelastic waves

ABSTRACT When modelling the propagation of 3D non‐axisymmetric elastic and viscoelastic waves in cylindrical coordinates using the finite‐difference time‐domain method, a mathematical singularity occurs due to the presence of 1/r terms in the elastic and viscoelastic wave equations. For many years,...

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Veröffentlicht in:	Geophysical Prospecting 2018-03, Vol.66 (S1), p.27-39
Hauptverfasser:	Zhuang, Mingwei, Zhou, Jianyang, Wei, Songlin, Liu, Qing Huo
Format:	Artikel
Sprache:	eng
Schlagworte:	Cylindrical coordinates Elastic waves FDTD method Numerical singularity The rotated Cartesian coordinate method
Online-Zugang:	Volltext
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