The motion of passive admixture of spherical particles in the stationary hydrodynamic field of a swirling higgs bookcase flow is studied.A spherical particle of a given mass in the hydrodynamic field of a swirling flow is located on a certain circular orbit, where the centrifugal force is compensated by the radial drag force due to the sink.This leads to the separation of the host fluid and admixture.
A theory of Brownian motion of admixture in dilute solutions with cowhide beanie a non-uniform flow is constructed.