Abstract

An analysis is presented of incompressible flow in a straight pipe of circular cross-section, rotating about an axis perpendicular to its length, under the influence of a periodic pressure gradient. It is shown that the secondary axial velocity along the pipe is comprised of a steady part and an unsteady part oscillating at twice the frequency of the applied pressure gradient. Of particular interest is the steady component of velocity for which it is shown that, at high frequencies, a reversal of drift in certain regions can be induced.

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