Flow mapping of a jet in crossflow with stereoscopic PIV


Meyer K., Ozcan O., Westergaard C.

JOURNAL OF VISUALIZATION, vol.5, no.3, pp.225-231, 2002 (Journal Indexed in SCI) identifier identifier

  • Publication Type: Article / Article
  • Volume: 5 Issue: 3
  • Publication Date: 2002
  • Doi Number: 10.1007/bf03182330
  • Title of Journal : JOURNAL OF VISUALIZATION
  • Page Numbers: pp.225-231

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.