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Information × Registration Number 0212U004716, 0108U000039 , R & D reports Title Investigation of interaction of surface gravity waves with the systems of near-shore and offshore constructions taking into account the bottom erosion and nonlinear effects popup.stage_title Head Selezov Igor Timopheevich, Registration Date 24-01-2012 Organization The Institute of Hydromechanics of the National Academy of Sciences of Ukraine popup.description2 Subject of inquiry - interaction of surface gravity waves with coastal and offshore structures. A research objective is construction of mathematical models on the basis of asymptotic and numerically-analytical methods, carrying out of physical modelling concerning research of propagation and diffraction of hydrodynamic waves in systems with the complicated structure at the presence of inhomogeneities, localised excitations and porosity, interaction of waves with ground structure and its abrasions, working out of techniques of calculations. On the basis of analytical and asymptotic methods the interaction of surface gravity waves with ground inhomogeneities and propagation of nonlinear bending-gravity waves is investigated. The reflection coefficient, completely characterising suppressing waves at passage from a water of large depths to the smaller ones is analyzed. Extreme character of inhomogeneity influence is established. The problem of surface waves generation under the action of repeated ground excitation is investigated and the amplitude increasing in this case, important for generation of tsunami waves is established. Theoretically and experimentally the propagation and transformation of wind waves over underwater berm which is complicated by the presence r of inhomogeneities are investigated. Zones of possible washout of a ground round the vertical circular cylinder are established by which the basis sea a drilling platform is modelled. The solution of a stationary problem of the theory of diffraction of waves by a flooded complicated the cylinder is presented and analyzed. The influence of the perforated screen round the cylinder reducing force loadings on a construction is investigated. The mathematical and semiempirical models, allowing to carry out look-ahead calculations concerning interaction of surface waves on water with an erosive bottom in a near-coastal zone are proposed. The results of work can be used for working out coast protecting buildings concerning wave suppression, reduction of coast erosion and calculations of wave loadings on drilling platforms. Product Description popup.authors Івахов Валентин Петрович Абрамова Людмила Петрівна Бондар Вікторія Віталіївна Братасюк Ірина Павлівна Гончаренко Тетяна Борисівна Горбатенко Євген Григорович Зігерс Наталія Ігорівна Марченко Анатолій Григорович Морозова Лариса Володимирівна Нікітін Іван Анатолієвич Пєтухов Олександр Михайлович 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