Electromagnetic scattering calculations using a finite—element solver for the Maxwell equations

  • C. Richard DeVore
  • Rainald Löhner
  • John Ambrosiano
Session II: Mesh Management and Visualization
Part of the Lecture Notes in Physics book series (LNP, volume 395)


We describe a pair of finite-element codes which use unstructured meshes to solve the time-dependent Maxwell equations, with particular emphasis on their application to electromagnetic scattering problems. A two-step, flux-corrected transport scheme is used to effect the time integration, while the spatial structure of the field is determined by a Galerkin procedure. The basis functions are piecewise-linear on three-noded triangles in two dimensions and four-noded tetrahedra in three. For the periodic scattering problems with which we are presently concerned, adaptive remeshing is a convenient and powerful method for improving the quality of the solutions. Results for the analytically tractable case of scattering by a perfectly conducting circular cylinder are used to illustrate the performance of the codes.


Transverse Electric Scattered Field Fourier Amplitude Electromagnetic Scattering Acoustic Scattering 
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Copyright information

© Springer-Verlag 1991

Authors and Affiliations

  • C. Richard DeVore
    • 1
  • Rainald Löhner
    • 2
  • John Ambrosiano
    • 3
  1. 1.Laboratory for Computational Physics and Fluid DynamicsNaval Research LaboratoryWashingtonUSA
  2. 2.CMEE, SEASThe George Washington UniversityWashington
  3. 3.Lawrence Livermore National LaboratoryLivermoreUSA

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