Geodesic
Spouting of vertical submerged axisymmetric jets in relatively narrow channels
Vestnik Moskovskogo universiteta. Matematika, mehanika, no. 3 (2019), pp. 54-58

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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. 
@article{VMUMM_2019_3_a7,
     author = {V. P. Karlikov and A. T. Nechaev and S. L. Tolokonnikov},
     title = {Spouting of vertical submerged axisymmetric jets in relatively narrow channels},
     journal = {Vestnik Moskovskogo universiteta. Matematika, mehanika},
     pages = {54--58},
     publisher = {mathdoc},
     number = {3},
     year = {2019},
     language = {ru},
     url = {http://geodesic.mathdoc.fr/item/VMUMM_2019_3_a7/}
}
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V. P. Karlikov; A. T. Nechaev; S. L. Tolokonnikov. Spouting of vertical submerged axisymmetric jets in relatively narrow channels. Vestnik Moskovskogo universiteta. Matematika, mehanika, no. 3 (2019), pp. 54-58. http://geodesic.mathdoc.fr/item/VMUMM_2019_3_a7/