Geodesic
Peculiarities of the dynamics of a viscous liquid with a free boundary under periodic influences
Izvestiya VUZ. Applied Nonlinear Dynamics, Tome 32 (2024) no. 2, pp. 197-208

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Purpose of the work is revealing and researching of peculiarities of a motion of a viscous liquid having a free boundary and undergoing periodic in time influences which are characterized by the absence of a predominant direction in space. Methods. The analytic investigation methods of non-linear problems, of boundary problems for the system of Navier-Stokes and continuity equations are used that are the method of perturbations (the method of a small parameter) the method of Fourier (the method of a separation of variables), an averaging, a construction and studying of asymptotic formulas. Results. A new problem on the motion of a viscous liquid is formulated and solved. Asymptotic representations of the found solution are constructed and explored. New hydromechanical effects are revealed. Conclusion. The work is fulfilled in the development of a perspective direction in liquid mechanics that is of researching the dynamics of hydromechanical systems under periodic influences. The obtained results can be used in particular in further investigations of a non-trivial dynamics of hydromechanical systems, under working for the methods of a control of hydromechanical systems.
Keywords: viscous liquid, free boundary, periodic in time influences, predominant direction in space, stationary motion 
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     author = {V. L. Sennitskii},
     title = {Peculiarities of the dynamics of a viscous liquid with a free boundary under periodic influences},
     journal = {Izvestiya VUZ. Applied Nonlinear Dynamics},
     pages = {197--208},
     publisher = {mathdoc},
     volume = {32},
     number = {2},
     year = {2024},
     language = {ru},
     url = {http://geodesic.mathdoc.fr/item/IVP_2024_32_2_a4/}
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V. L. Sennitskii. Peculiarities of the dynamics of a viscous liquid with a free boundary under periodic influences. Izvestiya VUZ. Applied Nonlinear Dynamics, Tome 32 (2024) no. 2, pp. 197-208. http://geodesic.mathdoc.fr/item/IVP_2024_32_2_a4/