An Experimental Study on the Structure of Juncture Flows

  • Authors:

  • Q.-D. Wei;G. Chen;X.-D. Du

  • Affiliations:

  • The State Key Laboratory for Turbulence Research, Peking University, Beijing 100871, China;The State Key Laboratory for Turbulence Research, Peking University, Beijing 100871, China and Department of Computer Science, Johns Hopkins University, Baltimore, MD 21218, USA.;The State Key Laboratory for Turbulence Research, Peking University, Beijing 100871, China and Department of Civil Engineering, Concordia University, Quebec H4G 3C3, Canada.

  • Venue:
  • Journal of Visualization
  • Year:
  • 2000

Quantified Score

Hi-index 0.00

Visualization

Abstract

The structure of juncture flows caused by a flat plate mounted a short cylinder on has been experimentally studied through visualization and measurement. The experiment was conducted in a water tunnel with low turbulence intensity which is less than 0.3%. The test Reynolds number was changed from 1,000 to 32,000. The results suggested that (a) four typical flow patterns were visualized clearly, which correspond to four Reynolds number ranges respectively; (b) there are strong correlations between the oscillation of the juncture horseshoe vortex system and the velocity fluctuation of upstream separated shear layer.