Return Velocities Induced by Shallow-Draft Navigation

by Stephen T. Maynord, US Army Engineer Waterways, Experiment Station, Vicksburg, United States,
Terry S. Siemsen, US Army Engineer Waterways, Experiment Station, Vicksburg, United States,



Document Type: Proceeding Paper

Part of: Hydraulic Engineering

Abstract:

Return velocities are caused by the displacement effects of vessels as they travel in navigation channels. Numerous return velocity equations have been developed for relatively small channels having prismatic shapes and vessels traveling on the channel center line. Techniques are needed for calculating return velocity in large river systems, for which many of the basic assumptions used in small prismatic channels are not valid. Two techniques were compared to prototype return velocity data collected on the Ohio River.

Subject Headings: Fluid velocity | Navigation (waterway) | Channels (waterway) | Velocity distribution | Ships | Flow measurement | Water flow | Ohio River

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