Speciality:
01.02.05 (Mechanics of fluids, gases and plasmas)
E-mail: ,
Keywords: hydrodynamic stability, fluid, convection, heavy solid additive, influence of form errors, rotation.
Subject:
Influence of form errors of a chamber filled with a liquid on the movement and stability of a ball rotating in the chamber was studied. A rising here diflective moment tends to direct the angular speed vector along the small semiaxis of the ellipsoid, i.e. a stable position of the rotor appears. Motion of a horizontal rotating rigid unstable cylinder in a stationary circular cylindrical chamber, which has finite length and is filled with viscous gas was solved. The inner cylinder is influenced by outer forces which vary periodically in time. The stability of a steady-state convective flow of a medium containing nonuniformly disturbed heavy impurity particles was studied.
Main publications:
Dement'ev O. Stability of steady-state flows of a liquid with a heavy impurity // Zeitschrift fur Angevandte Math. und Mech. ICIAM95-special issue. 1996. v. V. P. 112–114.
Dementiev O. Stability of a rotor motion in a chamber filled with viscous gas // Int. J. Comp. And Math. with Appl. v. 39. 2000. P. 183–192.
Bykov V., Dementiev O. Stability of a Rotating Ball // Korean J. Comput. Appl. Math. V. 9, 2002, no. 1, P. 277–288.
