MODELING OF WAVE REGIMES AND CONTROL PARAMETERS AT BODY MOTION UNDER THE WATER

Selezov Igor T., Institute of Hydromechanics of National Academy of Sciences of Ukraine, Zhelyabov St., 8/4, Kyiv, 03680, MSP, Ukraine

Kryvonos Iurii G., V.M. Glushkov Institute of Cybernetics of National Academy of Sciences of Ukraine, Kiev, Ukraine

Avramenko Olga V., Kirovograd State V. Vinnichenko Pedagogical University, Kirovograd

pages 73-83

DOI: 10.1615/JAutomatInfScien.v47.i2.10

The problem of surface gravity waves generation under the motion of the ellipsoid submerged in a liquid half-space is considered. As a special case the problem for sphere is analysed. Exact analytical solutions using the mirrow transformations for deviation of a free surface are obtained. As a result, the existence of motion characteristic regimes at which the form of a free surface can essentially differ is discovered. On the basis of numerical simulation the problem for elliptical wing with the conic nose part deflected with respect to a current is also investigated. It is shown that the wave drag increases with a nose deflection.

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