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Information × Registration Number 0214U002296, 0112U001087 , R & D reports Title Investigation of features of surface gravity wave propagation, its transformation at a coastal zone and its interaction with stationary and mobile hydroengineering buildings of complicated form and penetrating ones popup.stage_title Head Selezov Igor Timopheevich, Registration Date 28-01-2014 Organization The Institute of Hydromechanics of the National Academy of Sciences of Ukraine popup.description2 Test subject - propagation of nonlinear gravity waves on a free surface and interface. A research objective - mathematical and physical modelling of a fitures of generation and propagation of surface gravity waves, their transformations in a coastal zone over an arbitrary bottom, and also their reflexion, diffraction and interference near hydraulic engineering buildings of complicated geometry taking into account permeability and erosion effects for protection and rational use of resources of a coastal zone, optimisation of engineering methods of calculation and development of standard base construction. The qualitative analysis of abrasion of coast as ecological system is presented on the basis of system of nonlinear differential equations based on average magnitudes. Performances of a limit cycle are obtained and its stability is analyzed. The analysis of diffraction of plane harmonic waves by a column surrounded by two perforated screens is presented. The effect of geometrical parametres on a deviation of free water surface, wave reflection from the exterior screen, and also loadings on a column is investigated. A wave suppression at their transiting over an inclined site of a bottom which varies under the parabolic law is investigated. Existence of the generalised solutions of two mixed problems elastodynamics in rectangular area is considered at excitation on boundary. Two mixed problems of the theory of diffraction are formulated and existence theorems of the generalized solutions are proved. The results of experimental investigations of processes of interaction of surface single and progressive waves with coastal slopes hydroengineering buildings are presented. Possibilities of application of a supercavitation for pressure decrease of three-dimensional bodies at movement near to water wave surface in the conditions of considerable actions of gravitation are investigated. On the basis of a method of harmonic superposition wave load on elements of offshore platforms are investigated. Product Description popup.authors Івахов Валентин Петрович Абрамова Лдмила Петрівна Бондар Вікторія Віталіївна Братасюк Ірина Павлівна Гончаренко Тетяна Борисівна Горбатенко Євген Григорович Зігерс Наталія Ігорівна Морозова Лариса Володимирівна Нікітін Іван Анатолієвич Осіпова Галина Григорівна Парукова Лариса Володимирівна Савченко Світлана Олександрівна Свєчнікова Ксенія Михайлівна Серєбряков Володимир Веніамінович Терещенко Лідія Миколаївна Ткаченко Віктор Олексійович Фатєєва Ірина Михайлівна Харченко Анатолій Григорович Хомицький Віталій Володимирович Яковлев Віталій Васильович popup.nrat_date 2020-04-02 Close