Numerical simulation of vortex breakdown using adaptive grid refinement with vortex-center identification

Mitsuhiro Murayama, Kazuhiro Nakahashi, Keisluke Sawada

研究成果: Paper査読

抄録

In this paper, a topological-feature adaptation method is proposed to compute vertical flows around a delta wing at high incidence. Vortex-center identification based on the locally-applied critical-point method is utilized as an indicator of the grid refinement using the Rivara's bisection algorithm. The three-dimensional Navier-Stokes equations are solved using the hybrid unstructured grid. The computed results show that the refinement at the vortex core is effective to improve the numerical accuracy of the flow around a delta wing. The present feature-adaptive refinement is especially effective to improve the prediction of the vortex breakdown positions at high incidence. The results indicate the importance of the resolution at the vortex core for an accurate prediction of vortex dominated flow fields.

本文言語English
出版ステータスPublished - 2000 12月 1
イベント38th Aerospace Sciences Meeting and Exhibit 2000 - Reno, NV, United States
継続期間: 2000 1月 102000 1月 13

Other

Other38th Aerospace Sciences Meeting and Exhibit 2000
国/地域United States
CityReno, NV
Period00/1/1000/1/13

ASJC Scopus subject areas

  • 宇宙惑星科学
  • 航空宇宙工学

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