An experimental study on the near flow field characteristics of non-circular jets

YÜKSELENTÜRK Y., Erdem D.

7th International Conference on Experimental Fluid Mechanics (EFM), Hradec-Kralove, Çek Cumhuriyeti, 20 - 23 Kasım 2012, cilt.45 identifier identifier

  • Yayın Türü: Bildiri / Tam Metin Bildiri
  • Cilt numarası: 45
  • Doi Numarası: 10.1051/epjconf/20134501026
  • Basıldığı Şehir: Hradec-Kralove
  • Basıldığı Ülke: Çek Cumhuriyeti
  • İstanbul Teknik Üniversitesi Adresli: Evet

Özet

Subsonic turbulent free jet, issuing from a lobed contoured nozzle in to quiescent air is investigated experimentally. Results are compared with a circular jet from a nozzle of the same exit area and same contraction profile. Mean flow characteristics, turbulence intensities and Reynolds shear stresses in the near field region are investigated by using Hot-wire Anemometry. An overall decrease in turbulence intensities and enhanced flow entrainment in the near field of lobed nozzle are observed.