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Information × Registration Number 0217U002900, 0114U002435 , R & D reports Title Development of applied models for supercavitating, jet and near wall flows popup.stage_title Head Savchenko Yurii Nikolaevich, Registration Date 19-12-2017 Organization The Institute of Hydromechanics of the National Academy of Sciences of Ukraine popup.description2 The results of investigations of methods for controlling the motion of supercavitating vehicles and gas flow processes during their maneuvering are presented. On the basis of experimental and theoretical studies, perturbations of the shape of artificial cavities and hydrodynamic forces on the hulls are determined. An analysis of an arbitrary three-dimensional motion of a supercavitating vehicle is given for three types of motion control and an acceleration of underwater supercavitating vehicle. The mathematical model of the three-dimensional dynamics of partially cavitating underwater vehicles for improving control and stabilization methods is developed. The equation for calculating non-stationary evolutions of a thin axisymmetric artificial cavity in a ponderable liquid and some analytical solutions are found, a number of physical effects have been revealed, results of calculations are presented. The stability of stationary and pulsating cavities for different hulls is analyzed. As a result of theoretical studies, regularities of the influence of the shape of the solid body, its penetrating properties due to perforation on the force when strung on the surface of the water are established. The analytical solution of the self-similar problem of penetration of an expanding wedge into fluid is presented. Experimental studies of interaction of jet supercavities with each other and with a solid wall have been carried out in order to improve the surface cleaning technology. . Product Description popup.authors Іванюк Володимир Філімонович Власенко Юрій Дмитрович Каширіхін Леонід Петрович Кисельов Тарас Петрович Козенко Олег Миколайович Козенко Роман Миколайович Коозенко Віктор Феодосійович Криницький Володимир Олександрович Маанова Зінаїда Іванівна Нааумова Олена Іонівна Нестерук Ігор Георгійович Савченко Георгій Юрійович Савченко Юрій Миколайович Семененко Воодимир Миколайович Семенов Юрій Асаф"євич Чичик Петро Дмитрович popup.nrat_date 2020-04-02 Close