Flow field measurements of separated and reattached flows

J. Kostas, A. Fouras, J. Soria, M. S. Chong

Research output: Contribution to journalArticleResearchpeer-review

Abstract

A mean, 2-D separating and reattaching flow over a blunt flat plate at a Re=(Formula Presented)=1000 (plate thickness, h) has been investigated using Particle Image Velocimetry (PIV). Medium spatial resolution instantaneous velocity field measurements, as well as temporal velocity field measurements in and around the separation bubble have been obtained. The experimental results show a highly unsteady flapping of the shear layer causing considerable variation in the size of the separation bubble. This flapping occurs principally in the downstream region of the separated shear layer and results in a large uncertainty of the instantaneous reattachment point.

Original languageEnglish
Pages (from-to)11-14
Number of pages4
JournalFluid Mechanics and its Applications
Volume46
DOIs
Publication statusPublished - 1998

Keywords

  • Bluff Body
  • Particle Image Velocimetry
  • Separate Shear Layer
  • Separation Bubble
  • Shear Layer

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