Nearfield Performance of River Diffusersby A. David Parr, (A.M.ASCE), Assoc. Prof.; Dept. of Civ. Engrg., Univ. of Kansas, Lawrence, Kans,
Joel C. Melville, (M.ASCE), Assoc. Prof.; Dept. of Civ. Engrg., Auburn Univ., Auburn, Ala.,
Serial Information: Journal of the Environmental Engineering Division, 1981, Vol. 107, Issue 5, Pg. 995-1008
Document Type: Journal Paper
The flowfield induced by a submerged multiport diffuser discharging across part of the width of a river is considered. A mathematical model is formulated for the flow in the nearfield region of a diffuser plume centered in a rectangular channel. The model is used to determine nearfield dilution as a function of effluent and ambient flow parameters. A family of dilution curves is presented for a range of conditions characteristic of prototype river diffusers. A method is given for applying the mathematical model to diffuser-induced flowfields in rivers. The model is also compared with measurements made in the Mississippi River downstream from the Quad Cities Nuclear Power Station diffuser.
Subject Headings: Diffusion | Rivers and streams | Power plants | Mathematical models | Hydrologic models | Mathematics | Dilution | Submerging | Mississippi River
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