The motion of a body with variable mass geometry in a viscous fluid
2012, Vol. 8, No. 4, pp. 815-836
Author(s): Vetchanin E. V., Mamaev I. S., Tenenev V. A.
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. A non-stationary three-dimensional solution to the problem is found. The motion of a sphere and a drop-shaped body in a viscous fluid, which is caused by the motion of internal material points, in a gravitational field is explored. The possibility of motion of a body in an arbitrary given direction is shown.
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