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Three-dimensional linear stability of natural convection in horizontal concentric annuli.

Author(s) : ADACHI T., IMAI S.

Type of article: Article

Summary

The authors have performed three-dimensional linear stability analyses of natural convection of air (Pr= 0.71) in horizontal annuli between concentric cylinders by using a spectral element method. A linear stability theory is applied to a basic two-dimensional steady solution which is called a crescent-shaped convection, and an eigenvalue problem of matrix form is constituted. They evaluate a critical Rayleigh number where the basic flow loses its stability with respect to three-dimensional disturbances over a wide range of aspect ratio. It is found that the instability mode which destabilizes the basic convection exchanges among three different modes, and the new transition lines are proposed. [Reprinted with permission from Elsevier. Copyright, 2006].

Details

  • Original title: Three-dimensional linear stability of natural convection in horizontal concentric annuli.
  • Record ID : 2007-1961
  • Languages: English
  • Source: International Journal of Heat and Mass Transfer - vol. 50 - n. 7-8
  • Publication date: 2007/04

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