Higher-order schemes with CIP method and adaptive Soroban grid towards mesh-free scheme

Takashi Yabe, Hiroki Mizoe, Kenji Takizawa, Hiroshi Moriki, Hyo Nam Im, Youichi Ogata

Research output: Contribution to journalArticlepeer-review

61 Citations (Scopus)

Abstract

A new class of body-fitted grid system that can keep the third-order accuracy in time and space is proposed with the help of the CIP (constrained interpolation profile/cubic interpolated propagation) method. The grid system consists of the straight lines and grid points moving along these lines like abacus - Soroban in Japanese. The length of each line and the number of grid points in each line can be different. The CIP scheme is suitable to this mesh system and the calculation of large CFL (>10) at locally refined mesh is easily performed. Mesh generation and searching of upstream departure point are very simple and almost mesh-free treatment is possible. Adaptive grid movement and local mesh refinement are demonstrated.

Original languageEnglish
Pages (from-to)57-77
Number of pages21
JournalJournal of Computational Physics
Volume194
Issue number1
DOIs
Publication statusPublished - 2004 Feb 10
Externally publishedYes

Keywords

  • Curvilinear coordinate
  • Mesh free
  • Numerical algorithm
  • Semi-Lagrangian scheme
  • Third-order scheme

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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