Staged Multiport Diffusers

by Charles W. Almquist, (A.M.ASCE), Research Asst.; Dept. of Civ. Engrg., Univ. of Texas, Austin, Tex.,
Keith D. Stolzenbach, (M.ASCE), Assoc. Prof.; Dept. of Civ. Engrg., Massachusetts Inst. of Tech., Cambridge, Mass.,

Serial Information: Journal of the Hydraulics Division, 1980, Vol. 106, Issue 2, Pg. 285-302

Document Type: Journal Paper


A staged multiport diffuser is schematized as an equivalent line source of momentum, neglecting the effects of effluent volume and buoyancy fluxes. Center-line effluent concentrations inferred from the predicted volumetric dilution induced by the diffuser discharge are in good agreement with values observed in laboratory scale models of staged diffusers. The theory is found to be applicable to the design of staged diffusers in coastal receiving waters.

Subject Headings: Diffusion | Effluents | Buoyancy | Dilution | Water discharge | Agreements and treaties | Scale models | Sea water

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