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The self-propulsion of a body with moving internal masses in a viscous fluid |
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| Authors: | Evgeny V. Vetchanin Ivan S. Mamaev Valentin A. Tenenev |
| Affiliation: | 16217. Izhevsk State Technical University, ul. Studencheskaya 7, Izhevsk, 426069, Russia 26217. Institute of Computer Science, Udmurt State University, ul. Universitetskaya 1, Izhevsk, 426034, Russia 36217. A.A. Blagonravov Mechanical Engineering Research Institute of RAS, ul. Bardina 4, Moscow, 117334, Russia 46217. Institute of Mathematics and Mechanics of the Ural Branch of RAS, ul. S. Kovalevskoy 16, Ekaterinburg, 620990, Russia |
| Abstract: | An investigation of the characteristics of motion of a rigid body with variable internal mass distribution in a viscous fluid is carried out on the basis of a joint numerical solution of the Navier — Stokes equations and equations of motion for a rigid body. A nonstationary three-dimensional solution to the problem is found. The motion of a sphere and a drop-shaped body in a viscous fluid in a gravitational field, which is caused by the motion of internal material points, is explored. The possibility of self-propulsion of a body in an arbitrary given direction is shown. |
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