Study of gas dynamics of the intersecting jets in a semi-open channel

The subject of the study is axisymmetric channel with a hemispherical bottom. The compressed air flows into the channel through the holes located on the surface of the hemispherical bottom. The ratio of all holes area to the outlet area of the channel is equal to 0.25. The experimental and numerical...

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Bibliographic Details
Published in:Journal of physics. Conference series 2017-10, Vol.894 (1), p.12130
Main Authors: Abashev, V M, Eremkin, I V, Zhivotov, N P, Zamuraev, V P, Kalinina, A P, Tretyakov, P K, Tupikin, A V
Format: Article
Language:English
Subjects:
Air flow
Compressed air
Gas dynamics
Jets
Open channels
Physics
Pressure recovery
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Summary:The subject of the study is axisymmetric channel with a hemispherical bottom. The compressed air flows into the channel through the holes located on the surface of the hemispherical bottom. The ratio of all holes area to the outlet area of the channel is equal to 0.25. The experimental and numerical study of jets intersecting at a single point is performed. The countermoving jets and the focused jets are investigated. The distribution of pressure over the surface of the channel and the total pressure at the output of the channel are obtained. The main experimental result is as follows: the total pressure recovery coefficient for the focused jets is twice more than that for the countermoving jets.
ISSN:1742-6588
1742-6596
DOI:10.1088/1742-6596/894/1/012130