Effect of acceleration on the wavy Taylor vortex flow

Q. Xiao, T.T. Lim, Y.T. Chew

Research output: Contribution to journalArticlepeer-review

16 Citations (Scopus)

Abstract

In this paper, we use a laser optical technique to investigate the characteristics of a wavy Taylor vortex flow between two concentric cylinders, with the inner cylinder subjected to a wide range of predetermined acceleration and the outer one at rest. We focus on the inner/outer radius ratio of 0.894, with an acceleration (dRe/dt*) from 0.1123 to 2,247, and Reynolds number from Re/Rec = 1.0 to 36. The results show that, with increasing Reynolds number, there is an initial increase in the wavelength of the wavy vortex flow (λ), and a decrease in the wave speed (c) before they asymptote to a constant value, which is a function of the acceleration. As for the wave amplitude (A), it is found that the effect of acceleration is significant only in a very narrow range of Reynolds numbers.
Original languageEnglish
Pages (from-to)639-644
Number of pages6
JournalExperiments in Fluids
Volume32
Issue number6
DOIs
Publication statusPublished - 30 Jun 2002

Keywords

  • acceleration measurement
  • cylinders (shapes)
  • laser applications
  • Reynolds number
  • turbulence
  • wave effects
  • Taylor vortices
  • wave speed
  • wavy Taylor vortex flow
  • vortex flow

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