Wind Setup Effects in Large Open Channels

by Johannes J. DeVries, (M.ASCE), Sr. Engr.; Dept. of Land, Air, and Water Resources, Univ. of California, Davis, Calif.,
Jaime Amorocho, (F.ASCE), Prof. of Civ. Engr. and Water Sci.; Univ. of California, Davis, Calif.,


Serial Information: Journal of the Waterway, Port, Coastal and Ocean Division, 1980, Vol. 106, Issue 3, Pg. 319-334


Document Type: Journal Paper

Abstract: Measurements in a large conveyance canal in California permitted the evaluation of the water surface superelevation (setup due to wind shear in the axial direction of the channel). Through the use of a general equation for the wind shear proposed by the writers, it is shown that the wind setup can be computed closely for various flow conditions, including unsteady states. It is also shown that the wind shear in open channels obeys the same general laws applicable to seaways.

Subject Headings: Open channels | Wind engineering | Water surface | Curvature | Unsteady flow | Highways and roads | Canals | Shear flow | Wind direction | North America | California | United States

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