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Conceptual Design of Submarine Outfalls - II: Hydraulic Design of Diffusers

Brooks, Norman H. (1970) Conceptual Design of Submarine Outfalls - II: Hydraulic Design of Diffusers. In: Water Resources Engineering Educational Series Program VII Pollution of Coastal and Estuarine Waters, January 28-30, 1970, San Francisco, CA. (Unpublished) https://resolver.caltech.edu/CaltechAUTHORS:20140604-153140702

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Abstract

For a given ocean outfall, improvement of dispersal of sewage effluent is accomplished by use of a multiple jet manifold or diffuser at the end of the outfall sewer. If the sewage is discharged at a single port or "en masse", its dispersion and dilution will be slower than if it is discharged over a large area through a number of ports, as explained in the preceding lecture. In fact, without the use of multiple-outlet diffusers, other conditions being equal, much longer outfalls into deeper water are necessary to provide the same degree of dispersion and consequent shore protection. An effective and simple type of diffuser is one which distributes the outflow through many ports over a large area with minimum head loss. The following discussion presumes a diffuser consisting of one long pipe, or several branching ones, with discharge ports at intervals along the pipes.


Item Type:Conference or Workshop Item (Paper)
Additional Information:These notes have been prepared for the Water Resources Engineering Educational Series, Program VII, "Pollution of Coastal and Estuarine Waters," University Extension and the College of Engineering, University of California, Berkeley, Jan. 28-30, 1970. These notes are essentially a condensation and revision of a portion of Rawn, Bowerman and Brooks (28).
Record Number:CaltechAUTHORS:20140604-153140702
Persistent URL:https://resolver.caltech.edu/CaltechAUTHORS:20140604-153140702
Usage Policy:No commercial reproduction, distribution, display or performance rights in this work are provided.
ID Code:46082
Collection:CaltechAUTHORS
Deposited By: Kristin Buxton
Deposited On:04 Jun 2014 22:37
Last Modified:03 Oct 2019 06:40

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