Linear stability of mixed convection in an annulus of large aspect ratio

L. S. Yao, Bradley Rogers

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

Abstract

The linear stability of fully developed, mixed convection in an annulus of large aspect ratio is studied. At an aspect ratio of 100, the effect of wall curvature is minimal, and both the base flow and its stability characteristics approach those of a two-dimensional channel flow. The linear-stability results demonstrate that the fully-developed flow is unstable in regions of practical interest in an appropriate parameter space. Consequently, commonly assumed parallel countercurrent flows in many idealized numerical and analytical studies can hardly be observed experimentally.

Original languageEnglish (US)
Title of host publicationAmerican Society of Mechanical Engineers, Heat Transfer Division, (Publication) HTD
PublisherPubl by American Soc of Mechanical Engineers (ASME)
Pages101-106
Number of pages6
Volume96
StatePublished - 1988
EventASME Proceedings of the 1988 National Heat Transfer Conference - Houston, TX, USA
Duration: Jul 24 1988Jul 27 1988

Other

OtherASME Proceedings of the 1988 National Heat Transfer Conference
CityHouston, TX, USA
Period7/24/887/27/88

ASJC Scopus subject areas

  • Fluid Flow and Transfer Processes
  • Mechanical Engineering

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