Abstract
When a low density fluid, such as hot air and helium gas, is discharged from a round nozzle, side jets are generated in the initial region of the jet. These radial ejections of the jet fluid are called side jets. The side-jet formation is estimated by the issuing conditions of the jet flow. The issuing conditions are mainly density ratio between the jet fluid and the ambient fluid, velocity profile and issuing speed at the nozzle outlet. However, a process of side-jet formation has not been revealed even now. In present work, we focused on the flow visualization of a gaseous jet flow with side jets, specifically, the vicinity of a jet nozzle issuing helium gas vertically into ambient air. The helium gas jet with the side-jet is visualized by a planar laser Mie scattering (PLMS) and recorded by a high-speed video camera, in order to investigate the process of side-jet formation.
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References
P.A. Monkewitz, K.D. Sohn, Absolute instability in hot jets. AIAA J. 26, 911–916 (1988)
P.A. Monkewitz, D.W. Bechert, B. Barsikow, B. Lehmann, Self-excited oscillation and mixing in a heated round jet. J. Fluid Mech. 213, 619–639 (1990)
K. Kawabe, H. Harada, A. Muramatsu, Three-dimensional imaging of a helium gas jet flow using planar laser Mie scattering, in Proceedings of 16th International Symposium on Flow Visualization, USB-Memory (2014)
A. Muramatsu, Y. Kaneda, Asymmetric structures in a round jet with low density, in Proceedings of the international symposium, turbulence, heat and mass transfer 7, CD-R(2012)
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Kawabe, K., Muramatsu, A. (2016). Flow Structure of a Round Jet with Side-Jet Formation. In: Segalini, A. (eds) Proceedings of the 5th International Conference on Jets, Wakes and Separated Flows (ICJWSF2015). Springer Proceedings in Physics, vol 185. Springer, Cham. https://doi.org/10.1007/978-3-319-30602-5_2
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DOI: https://doi.org/10.1007/978-3-319-30602-5_2
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Online ISBN: 978-3-319-30602-5
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