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The Hydraulic Characteristics of Ovoid Sewers
Author(s) -
Marriott M. J.
Publication year - 1996
Publication title -
water and environment journal
Language(s) - English
Resource type - Journals
SCImago Journal Rank - 0.437
H-Index - 37
eISSN - 1747-6593
pISSN - 1747-6585
DOI - 10.1111/j.1747-6593.1996.tb00065.x
Subject(s) - ovoid , sizing , sewerage , flow (mathematics) , sanitary sewer , electrical conduit , geology , engineering , mechanical engineering , mechanics , physics , environmental engineering , geometry , mathematics , art , visual arts
Abstract Egg‐shaped or ovoid cross‐sections are common in old brick‐built sewerage systems. A recent development has been the availability of precast concrete ovoid pipes with flexible joints. The hydraulic analysis of flow in ovoid sections is described, following some historical background. Examples are included which illustrate and quantify the advantages of ovoid sections over circular pipes for a combined sewer under low flow conditions. A design chart is presented which (a) facilitates the performance of certain design calculations, and (b) enables a direct solution for initial sizing calculations where a wide range of flows is being considered.