Finite Element Analysis of Combined Diffraction — Refraction

  • A. Nachbin
  • L. C. Wrobel
Conference paper


The problem of combined diffraction — refraction of surface waves propagating in a fluid of constant depth which encounter an area of varying bathymetry and obstacles has been studied by many different numerical methods. The problem is essentially three-dimensional and, as such, can be analysed by the boundary element method (Garrison (1978)), the finite element method (Zienkiewicz et al. (1978)) or the hybrid element method (Yue et al. (1978)). All these three-dimensional models, however, require huge storage and computer time mainly when the incident wave length becomes short.


Boundary Element Method Finite Element Mesh Decay Parameter Infinite Element Huge Storage 
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Copyright information

© Springer-Verlag Berlin Heidelberg 1984

Authors and Affiliations

  • A. Nachbin
    • 1
  • L. C. Wrobel
    • 1
  1. 1.Civil Engineering DepartmentCOPPE/Federal University of Rio de JaneiroRio de JaneiroBrazil

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