Spouting of Vertical Submerged Axisymmetric Jets in Relatively Narrow Channels
- Authors: Karlikov V.P.1, Nechaev A.T.1, Tolokonnikov S.L.1
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Affiliations:
- Moscow State University, Faculty of Mechanics and Mathematics
- Issue: Vol 74, No 3 (2019)
- Pages: 65-68
- Section: Article
- URL: https://journals.rcsi.science/0027-1330/article/view/164632
- DOI: https://doi.org/10.3103/S0027133019030038
- ID: 164632
Cite item
Abstract
The spouting of vertical submerged axisymmetric jets from under the free surface in relatively narrow channels is experimentally and numerically studied. The existence of self-oscillation regimes with transverse displacements of the free-surface elevation is found for wide ranges of constitutive parameters. Dependencies of the self-oscillation period on the velocities of jets and the initial value of the jet submergence are analyzed for various jet diameters. Some spouting regimes are numerically analyzed. A new class of self-oscillation spouting regimes known also as quasiregular is discovered for high-speed small-diameter jets when the depth of their submergence is relatively small. A comparison is made with the results obtained for plane submerged jets.
About the authors
V. P. Karlikov
Moscow State University, Faculty of Mechanics and Mathematics
Author for correspondence.
Email: karlikov@mech.math.msu.su
Russian Federation, Leninskie Gory, Moscow, 119899
A. T. Nechaev
Moscow State University, Faculty of Mechanics and Mathematics
Author for correspondence.
Email: artm26@mail.ru
Russian Federation, Leninskie Gory, Moscow, 119899
S. L. Tolokonnikov
Moscow State University, Faculty of Mechanics and Mathematics
Author for correspondence.
Email: tolsl@mech.math.msu.su
Russian Federation, Leninskie Gory, Moscow, 119899
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