Computing Green's function of the initial-boundary value problem for the wave equation in a layered cylinder

Yakhno V., Ozdek D.

INTERNATIONAL JOURNAL OF COMPUTER MATHEMATICS, cilt.91, sa.12, ss.2514-2534, 2014 (SCI-Expanded, Scopus) identifier identifier

  • Yayın Türü: Makale / Tam Makale
  • Cilt numarası: 91 Sayı: 12
  • Basım Tarihi: 2014
  • Doi Numarası: 10.1080/00207160.2013.873124
  • Dergi Adı: INTERNATIONAL JOURNAL OF COMPUTER MATHEMATICS
  • Derginin Tarandığı İndeksler: Science Citation Index Expanded (SCI-EXPANDED), Scopus
  • Sayfa Sayıları: ss.2514-2534
  • Anahtar Kelimeler: 42C10, 33C10, 35J08, 35L05, wave propagation, multi-layered cylinder, Green's functions, analytical method, simulation
  • Dokuz Eylül Üniversitesi Adresli: Evet

Özet

A new analytical method for the approximate computation of the time-dependent Green's function for the initial-boundary value problem of the three-dimensional wave equation on multi-layered bounded cylinder is suggested in this paper. The method is based on the derivation of eigenvalues and eigenfunctions for an ordinary differential equation with piecewise constant coefficients, and an approximate computation of Green's function in the form of the Fourier series with a finite number of terms relative to the orthogonal set of the derived eigenfunctions. The computational experiment confirms the robustness of the method.