V.N.Semenenko
Modelling of the longitudinal motion of the underwater supercavitating vehicles

Applied hydromechanics, Vol. 12 (84) ¹ 4, (2010) p.81-88
Stability of horizontal motion of the underwater supercavitating vehicles and methods of its stabilization are analysed numerically. An investigation method consists in the computer simulation of dynamics of a supercavitating self-propelled vehicle with using the approximation model of an unsteady supercavity by G.V. Logvinovich. It is shown that the supercavitating vehicle motion is unstable per the depth, and the vehicle behaviour turns out different in dependence on its mass center position. An effectiveness of active stabilization of the supercavitating vehicle motion by an automatic control of a cavitator slope angle with the linear feedback law is investigated.
KEY WORDS:
analysed numerically, supercavitating vehicle, mass center, cavitator
TEXT LANGUAGE: Russian