US Government As Represented by the Secretary of the Army

Thomas Gher

Guy F Cooper

George K Lucey, Jr

Robert J Richter

A vortex ring is used to produce a flow of fluid through a flexible tube, to remove surface deposits from a surface, and to transfer heat from a platen to a ring vortex. In pumping a fluid through a flexible conduit or tube, a vortex ring is launched along the tube so that the vortex ring encircles the tube. The vortex ring compresses and expands the flexible tube utilizing a high circumferential pressure formed at the bow of the vortex ring and a low pressure at the wake of the vortex ring. In removing deposits from a surface, a vortex ring launched along the surface mechanically abrades the surface and fractures the adhesion bonds of the surface deposits. In transferring heat from a heated surface to a vortex ring, the vortex ring removes the heat from the surface of the heated platen by forced convection.

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Laurel, MD, United States of America

Thomas Gher