Asymptotic drag formulas for rapidly rotating radial channels of rectangular cross section

Abstract

Taking, as an example, the solution of the drag problem of a slitlike channel, the change in flow characteristics with increase in intensity of rotation is shown. The form of the asymptotic drag formulas is determined for rapidly rotating channels with sides in a finite ratio, at Rossby numbers of the order of unity. Good agreement with experimental data is found. The final form of the asymptotic solution, valid at small Rossby numbers, is found.