Numerical evolution of elliptical 3-D vortex arrays in inviscid fluid

Xiong John He, Jacques Lewalle, Jackson Herring

Research output: Chapter in Book/Report/Conference proceedingConference contribution

Abstract

A numerical evolution of vortex arrays in an inviscid fluid was performed by the Galerkin-Fourier spectral method. The initial flows include Dcissler vortex and Taylor-Green vortex. The initial length scales along different directions are equal (circular) and unequal (elliptical), and the results are compared. The Deissler vortex flows have much stronger vortex interaction than the T-G vortex flows. The elliptization enhances the nonlinear interactions obviously in the doughnut T-G flow, but the enhancement is weak in the plane T-G flow and the Dcissler flow. The results support the concept that a main source of turbulence is the nonlinear interaction between neighboring vortex segments oriented differently.

Original languageEnglish (US)
Title of host publicationAIAA 22nd Fluid Dynamics, Plasma Dynamics and Lasers Conference, 1991
PublisherAmerican Institute of Aeronautics and Astronautics Inc, AIAA
StatePublished - 1991
EventAIAA 22nd Fluid Dynamics, Plasma Dynamics and Lasers Conference, 1991 - Honolulu, United States
Duration: Jun 24 1991Jun 26 1991

Other

OtherAIAA 22nd Fluid Dynamics, Plasma Dynamics and Lasers Conference, 1991
CountryUnited States
CityHonolulu
Period6/24/916/26/91

ASJC Scopus subject areas

  • Engineering (miscellaneous)
  • Aerospace Engineering
  • Electrical and Electronic Engineering
  • Condensed Matter Physics

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  • Cite this

    He, X. J., Lewalle, J., & Herring, J. (1991). Numerical evolution of elliptical 3-D vortex arrays in inviscid fluid. In AIAA 22nd Fluid Dynamics, Plasma Dynamics and Lasers Conference, 1991 [AIAA 91-1658] American Institute of Aeronautics and Astronautics Inc, AIAA.