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3-D Simulations of Kelvin-Helmholtz Instabilities in Supersonic Jets

  • P. Rossi
  • G. Bodo
  • S. Massaglia
  • A. Ferrari
  • A. Malagoli
Conference paper
Part of the International Astronomical Union book series (IAUS, volume 175)

Abstract

One of the key processes governing the structure and evolution of astrophysical jets is their interaction with the surrounding medium. A jet can deposit momentum and energy in the ambient medium, and entrain external material. The main physical process responsible for mixing between a jet flow and the ambient medium is the Kelvin-Helmholtz (KH) instability. We have previously analysed the 2D evolution of the axisymmetric modes of a cylindrical jet (Bodo et al 1994) and of the antisymmetric modes of a planar slab jet (Bodo et al 1995). These last are thought to give indications of the 3D evolution of the helical modes of a cylinder, since the linear behavior is very similar. In this contribution we present some preliminary results of fully 3D simulations comparing them with the mentioned 2D results.

Keywords

Mach Number Ambient Medium Antisymmetric Mode Helical Mode Axisymmetric Mode 
These keywords were added by machine and not by the authors. This process is experimental and the keywords may be updated as the learning algorithm improves.

References

  1. Bodo, G., Massaglia, S., Ferrari, A. and Trussoni, E. (1994), A&A, 283, 655.ADSGoogle Scholar
  2. Bodo, G., Massaglia, S., Rossi, P., Ferrari, A., Rosner, R. and Malagoli A. (1995), A&A, in press.Google Scholar

Copyright information

© International Astronomical Union 1996

Authors and Affiliations

  • P. Rossi
    • 1
  • G. Bodo
    • 1
  • S. Massaglia
    • 1
  • A. Ferrari
    • 1
  • A. Malagoli
    • 2
  1. 1.Osservatorio Astronomico di TorinoItaly
  2. 2.EFI/LASRUniversity of ChicagoChicagoUSA

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