Excitation of circular flow of a fluid by a rotating velocity field
Abstract
An extremely simple model is used to study steadystate circular flow of gas in a vessel caused by transfer of angular momentum from the rotating field to the gas. The experiments reveal a rotation of the gas as a rigid object nearly throughout the volume of the vessel. The NavierStokes equations are used to describe events in the model, and the continuity equation is solved. The average circular flow in the cylindrical vessel is obtained. The velocity field is seen to consist of two parts with sharply different rdependences, one of which falls off rapidly with distance from the surface of the vessel, and another which corresponds to the rotation of the gas as a whole. An expression for the angular velocity of the gas rotation is presented.
 Publication:

Pisma v Zhurnal Tekhnischeskoi Fiziki
 Pub Date:
 September 1982
 Bibcode:
 1982PZhTF...8.1123G
 Keywords:

 Acoustic Excitation;
 Acoustic Velocity;
 Annular Flow;
 Flow Velocity;
 Steady Flow;
 Aeroacoustics;
 Angular Momentum;
 Angular Velocity;
 Momentum Transfer;
 NavierStokes Equation;
 Rigid Structures;
 Rotating Fluids;
 Velocity Distribution;
 Fluid Mechanics and Heat Transfer