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Information × Registration Number 0116U008495, ( 0217U002934  0218U100094  0220U101270  0221U100645  0222U000379  ) R & D request Title Generation, spreading and diffusing of the waves in springy-fluid system Head Voropaiev Henadii O., Доктор фізико-математичних наук Registration Date 22-12-2016 Organization The Institute of Hydromechanics of the National Academy of Sciences of Ukraine popup.description1 The main purpose of scientific research is to develop the scientific basis for the analysis and control of the processes of propagation and interaction of waves in complex elastic-liquid systems. The topic envisages the development of mathematical models and numerical methods that allow to perform a quantitative assessment of both energy and spatial characteristics of sound fields, in the formation of which the effects of elastic-liquid interaction are essential. It is planned to develop numerical-analytical methods for solving boundary value problems for complex waveguide systems and on their basis to develop recommendations for controlling the process of energy transfer from the source of oscillations to a given point. The regularities of the process of wave propagation in waveguides made of porous material filled with a viscous liquid using the Bio theory for a two-phase medium will be considered. Methods for evaluating the efficiency of sound radiation by gas streams in open resonators and waveguides will be developed. popup.nrat_date 2024-12-10 Close