Flow past a ship radiating a bore in a channel

Authors: Gourlay T.; Cook S.

Source: Proceedings of the I MECH E Part M, Number , pp. 31-40(10)

Publisher: Professional Engineering Publishing

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Abstract:

A theoretical and experimental investigation is made into the phenomenon of ship-radiated bores caused by a vessel travelling in a shallow, narrow channel at a supercritical speed. The very large drag of this flow phenomenon is studied, as well as the conditions under which it occurs. An improved one-dimensional theory is described for predicting the bore properties, and a new theory is put forward for predicting flow velocity and free surface height back to the stern of the ship. Results are compared with an experimental investigation of the same phenomenon, for a ship either fixed vertically in its rest position or free to squat.

Keywords: SHIP; BORE; CHANNEL; CRITICAL SPEED

Document Type: Special article

DOI: 10.1243/147509004774048550

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