Flow mapping of a jet in crossflow with stereoscopic PIV

Meyer K. E., Özcan O., Westergaard C. H.

Journal of Visualization, vol.5, no.3, pp.225-231, 2002 (Scopus) identifier identifier

  • Publication Type: Article / Article
  • Volume: 5 Issue: 3
  • Publication Date: 2002
  • Doi Number: 10.1007/bf03182330
  • Journal Name: Journal of Visualization
  • Journal Indexes: Scopus
  • Page Numbers: pp.225-231
  • Keywords: jet in crossflow, stereoscopic PIV, flow mapping
  • Istanbul Gelisim University Affiliated: No

Abstract

Stereoscopic Particle Image Velocimetry (PIV) has been used to make a three-dimensional flow mapping of a jet in crossflow. The Reynolds number based on the free stream velocity and the jet diameter was nominally 2400. A jet-to-crossflow velocity ratio of 3.3 was used. Details of the formation of the counter rotating vortex pair found behind the jet are shown. The vortex pair results in two regions with strong reversed velocities behind the jet trajectory. Regions of high turbulent kinetic energy are identified. The signature of the unsteady shear layer vortices is found in the mean vorticity field. © 2002 The Visualization Society of Japan and Ohmsha, Ltd.