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Information × Registration Number 0221U106796, 0120U105260 , R & D reports Title Diffraction processes and acoustic radiation forces in the bounded hydroelastic systems popup.stage_title Head Kubenko Veniamin D., Доктор фізико-математичних наук Registration Date 20-12-2021 Organization Institute of Mechanics. S.P. Tymoshenko of the National Academy of Sciences of Ukraine popup.description2  Objects of research: filled infinite and semi-infinite cavity, narrow elastic tube containing immersed solid spherical particle, liquid bubble under the action of stationary plane waves. The purpose of the study: development of an analytical approach and on its basis determining of the characteristics of hydrodynamic fields and radiation forces in the filling compressible fluid cavity with solid or liquid inclusion. Research methods - analytical. The boundary value problems of the theory of hydro-elasticity are formulated, the methods of solution are developed and on their basis the hydrodynamic parameters of the processes of interaction of a plane moving or standing wave with a rigid spherical body in a narrow elastic tube and with a liquid bubble in an infinite or semi-infinite cavity are determined. The hydrodynamic pressure in the vicinity of the solid or liquid inclusion is calculated depending on the frequency of the applied load, geometric and physic-mechanical parameters of the system. The peculiarities of the wave interaction of the cavity and the spherical body due to the elasticity of the tube wall and the compressibility of the bubble fluid are revealed. The anomalous frequencies are determined, at the excitation of which the pressure in the cavity around the body increases significantly. The radiation forces acting on the body are calculated. Product Description popup.authors Zhuk Yaroslav O. Klimchuk Taras V. Liskin Viacheslav O Ostos Olexandr H Yanchevskyi Ihor V popup.nrat_date 2021-12-20 Close