Flow mapping of a jet in crossflow with stereoscopic PIV

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

Journal of Visualization, cilt.5, sa.3, ss.225-231, 2002 (Scopus) identifier identifier

  • Yayın Türü: Makale / Tam Makale
  • Cilt numarası: 5 Sayı: 3
  • Basım Tarihi: 2002
  • Doi Numarası: 10.1007/bf03182330
  • Dergi Adı: Journal of Visualization
  • Derginin Tarandığı İndeksler: Scopus
  • Sayfa Sayıları: ss.225-231
  • Anahtar Kelimeler: jet in crossflow, stereoscopic PIV, flow mapping
  • İstanbul Gelişim Üniversitesi Adresli: Hayır

Özet

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.