INTERACTION OF TWO TURBULENT PARALLEL ROUND JETS IN THE NEAR FLOW FIELD

This paper presents the results of an experimental study of the turbulent structure of the near-field flow of two parallel jets issuing from long round tubes. Measurements were performed for distances between the axes of the tubes  , 1.8, and 2.4 and for Reynolds numbers   and . It is shown that in...

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Bibliographic Details
Published in:Journal of applied mechanics and technical physics 2022-06, Vol.63 (3), p.373-382
Main Authors: Terekhov, V. I., Terekhov, V. V., Filippov, M. V., Chokhar, I. A.
Format: Article
Language:English
Subjects:
Anisotropy
Applications of Mathematics
Classical and Continuum Physics
Classical Mechanics
Fluid flow
Fluid- and Aerodynamics
Jets
Mathematical Modeling and Industrial Mathematics
Mechanical Engineering
Near fields
Physics
Physics and Astronomy
Reynolds number
Tubes
Turbulence
Turbulent flow
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Summary:This paper presents the results of an experimental study of the turbulent structure of the near-field flow of two parallel jets issuing from long round tubes. Measurements were performed for distances between the axes of the tubes  , 1.8, and 2.4 and for Reynolds numbers   and . It is shown that in the near field of closely spaced twin jets, the longitudinal velocity component on their axis decreases more slowly than in single jets. In this case, the distance between the jets   has practically no effect on the transverse scale of the jet and turbulent pulsations of the longitudinal velocity component. Turbulence anisotropy is practically absent throughout the flow field, except in the outer regions of the jets.
ISSN:0021-8944
1573-8620
DOI:10.1134/S0021894422030014