Flows structure and intensity during liquid and body oscillations in variable cross-section channel

\n The present study investigates the intensity and structure of averaged flows at oscillating fluid flow in a vertical axisymmetric channel of variable cross-section. The results demonstrate that oscillating of the fluid induces the formation of strong flows throughout each of the channel segments. The magnitude of these flows is contingent upon the influence of a free oscillating solid body. The results indicate that the presence of a spherical body in the channel has the effect of either intensifying or weakening the fluid’s flow rate in response to both the amplitude of the oscillation and the body’s relative position within the channel.\n