Overset unstructured grids method for viscous flow computations

Fumiya Togashi, Yasushi Ito, Kazuhiro Nakahashi, Shigeru Obayashi

Research output: Contribution to journalArticlepeer-review

15 Citations (Scopus)


The overset unstructured grid method is extended to viscous flow computations of multiple bodies in contact. Overset treatment of hybrid meshes composed of tetrahedral, prismatic, and pyramidal elements is discussed in detail when those elements are embedded in or in contact with the wall boundary of another grid. This method is applied to the ONERA MS wing-body model and computed by the Navier-Stokes code. The computational results show good agreement with those obtained by a single grid and the experimental data. The boundary layer in the intersection region between two grids is well captured without a collar grid.

Original languageEnglish
Pages (from-to)1617-1623
Number of pages7
JournalAIAA journal
Issue number7
Publication statusPublished - 2006 Jul

ASJC Scopus subject areas

  • Aerospace Engineering


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