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Information × Registration Number 0217U002934, 0116U008495 , R & D reports Title Generation, spreading and diffusing of the waves in springy-fluid system popup.stage_title Head Grinchenko Victor Timopheevich, Доктор фізико-математичних наук Registration Date 26-12-2017 Organization The Institute of Hydromechanics of the National Academy of Sciences of Ukraine popup.description2 Within the framework of this topic, it is proposed to develop the Green's function of the three-dimensional convective wave equation and the Helmholtz convective equation for infinite straight channels of various forms of the cross-section with different types of walls. Based on the Green's method of functions and these functions, mathematical models of generation and propagation of sounds in channels with local irregularities of geometry and different types of walls and cross-sectional forms will be developed. Various acoustic sources will be considered, as well as the influence of currents in the channels. Three-dimensional filters for processing registered acoustic signals will be developed Product Description popup.authors А. В. Борисюк А.Г.Рудницкий В.С. Малюга В.Т.Грінченко Л.В. Ткаченко М.А..Рудницкая popup.nrat_date 2020-04-02 Close