Diameter and surcharge effects on solute transport across surcharged manholes
UNSPECIFIED. (2005) Diameter and surcharge effects on solute transport across surcharged manholes. JOURNAL OF HYDRAULIC ENGINEERING-ASCE, 131 (4). pp. 312-321. ISSN 0733-9429Full text not available from this repository.
Official URL: http://dx.doi.org/10.1061/(ASCE)0733-9429(2005)131...
New data are presented describing the retention time and longitudinal dispersion of a solute tracer across circular surcharged manhole structures of different diameters. The variations with both discharge and surcharge level are described and the relationships quantified. The variation of the longitudinal dispersion coefficient exhibits poorly defined trends, however using an aggregated dead zone technique both the reach time delay and travel time show clear variations. A surcharge threshold level for these parameters is evident at the larger manhole diameters and this is explained in relation to jet theory. The variation of the surcharge mean time delay and postthreshold mean travel time are quantified, while the prethreshold travel times are shown to be dependent on both discharge and surcharge. The relationships allow for inclusion in sewer water quality modeling and provide a method for improving predictive techniques.
|Item Type:||Journal Article|
|Subjects:||T Technology > TA Engineering (General). Civil engineering (General)
T Technology > TJ Mechanical engineering and machinery
T Technology > TC Hydraulic engineering. Ocean engineering
|Journal or Publication Title:||JOURNAL OF HYDRAULIC ENGINEERING-ASCE|
|Publisher:||ASCE-AMER SOC CIVIL ENGINEERS|
|Official Date:||April 2005|
|Number of Pages:||10|
|Page Range:||pp. 312-321|
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