Multiport Diffuser Mixing Tonesby A. David Parr, (A.M.ASCE), Assoc. Prof.; Dept. of Civ. Engrg., Univ. of Kansas, Lawrence, Kansas,
William W. Sayre, (M.ASCE), Hydro.; U.S. Geological Survey, Water Resources Division, Denver, Colo.,
Serial Information: Journal of the Environmental Engineering Division, 1981, Vol. 107, Issue 5, Pg. 903-917
Document Type: Journal Paper
Abstract: Mixing zones downstream from multiport diffusers discharging hot water in rivers are considered. The area enclosed in the isotherm defining the boundary of a single-port mixing zone is determined as a function of downstream distance from port, velocity ratio, and critical dilution ratio. The same variables are used to predict the discharge passing through the mixing zone isotherm. A procedure is presented wherein the semi-empirical single-port mixing zone relationships are used to predict the portion of river's discharge that is included in the mixing zone of a multiport diffuser. This procedure can be extended to estimate the river discharge below which environmental mixing zone limitations will be violated for specific multiport diffuser installations.
Subject Headings: Rivers and streams | Diffusion | Water discharge | Domain boundary | Ports and harbors | Dilution | Professional societies | High-rise buildings
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