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Equivalence conditions for the finite volume and finite element methods in spherical coordinates

Author

Listed:
  • De Santis, D.
  • Geraci, G.
  • Guardone, A.

Abstract

A numerical technique for the solution of the compressible flow equations over unstructured grids in a spherical reference is presented. The proposed approach is based on a mixed finite volume/finite element discretization in space. Equivalence conditions relating the finite volume and the finite element metrics in spherical coordinates are derived. Numerical simulations of the explosion and implosion problems for inviscid compressible flows are carried out to evaluate the correctness of the numerical scheme and compare fairly well to one-dimensional simulations over very fine grids.

Suggested Citation

  • De Santis, D. & Geraci, G. & Guardone, A., 2014. "Equivalence conditions for the finite volume and finite element methods in spherical coordinates," Mathematics and Computers in Simulation (MATCOM), Elsevier, vol. 106(C), pages 60-75.
    • Handle: RePEc:eee:matcom:v:106:y:2014:i:c:p:60-75
    DOI: 10.1016/j.matcom.2012.04.010
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