Highly energy-conservative finite difference method for the cylindrical coordinate system

Koji Fukagata, Nobuhide Kasagi

研究成果: Article査読

98 被引用数 (Scopus)

抄録

A highly energy-conservative second-order-accurate finite difference method for the cylindrical coordinate system is developed. It is rigorously proved that energy conservation in discretized space is satisfied when appropriate interpolation schemes are used. This argument holds not only for an unequally spaced mesh but also for an equally spaced mesh on cylindrical coordinates but not on Cartesian coordinates. Numerical tests are undertaken for an inviscid flow with various schemes, and it turns out that the proposed scheme offers a superior energy-conservation property and greater stability than the intuitive and previously proposed methods, for both equally spaced and unequally spaced meshes.

本文言語English
ページ(範囲)478-498
ページ数21
ジャーナルJournal of Computational Physics
181
2
DOI
出版ステータスPublished - 2002 9 20

ASJC Scopus subject areas

  • Numerical Analysis
  • Modelling and Simulation
  • Physics and Astronomy (miscellaneous)
  • Physics and Astronomy(all)
  • Computer Science Applications
  • Computational Mathematics
  • Applied Mathematics

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