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Numerical simulation of domestic wastewater sewer performance
Author(s) -
Dabrowski Wojciech,
Piaseczny Grzegorz
Publication year - 2000
Publication title -
lakes and reservoirs: research and management
Language(s) - English
Resource type - Journals
SCImago Journal Rank - 0.296
H-Index - 39
eISSN - 1440-1770
pISSN - 1320-5331
DOI - 10.1046/j.1440-1770.2000.00102.x
Subject(s) - sanitary sewer , hydraulics , wastewater , environmental science , range (aeronautics) , computation , flow (mathematics) , geotechnical engineering , hydrology (agriculture) , environmental engineering , geology , engineering , mathematics , geometry , algorithm , aerospace engineering
The hydraulics of municipal sewers were considered with respect to flow rate fluctuations that sometimes cause accumulation and sometimes cause scouring of the sediments. The minimal slopes that would ensure self‐cleaning conditions once a day and the required capacity for the yearly maximum peak flows were calculated. The range of fluctuations in shear stresses along the sewer walls and in the wastewater table were observed and compared for sewers of different diameters. From these computations a simple design rule for predicting minimal slopes was developed.