https://doi.org/10.1051/epjconf/20134501026
An experimental study on the near flow field characteristics of non-circular jets
1 ITU Graduate School of Science Engineering and Technology, Maslak, 34469 Istanbul, Turkey
2 ITU Faculty of Aeronautics and Astronautics, Aeronautical Engineering Department, Maslak, 34469 Istanbul, Turkey
Subsonic turbulent free jet, issuing from a lobed contoured nozzle in to quiescent air is investigated experimentally. Results are compared with a cir ular 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.
© Owned by the authors, published by EDP Sciences, 2013
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