IAHR, founded in 1935, is a worldwide independent member-based organisation of engineers and water specialists working in fields related to the hydro-environmental sciences and their practical application. Activities range from river and maritime hydraulics to water resources development and eco-hydraulics, through to ice engineering, hydroinformatics, and hydraulic machinery.
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You are here : eLibrary : IAHR World Congress Proceedings : 34th Congress - Brisbane (2011) : THEME 4: Responding to Shifting Water Resources : Flow configurations in stormwater pits
Flow configurations in stormwater pits
Author : Xiaohang Pang1 and Geoffrey O’Loughlin2
Stormwater drainage system designers and analysts commonly define hydraulic grade lines (HGLs) along pipe systems, based on energy losses. Hydraulic behaviour at stormwater pits is complex, and information on HGL changes at pits is incomplete, especially for part-full flows and transitions to full-pipe flow. The paper describes the first phase of a laboratory study of pressure changes at pits. Several configurations of a straight through flow pit, with one inlet pipe, a top inflow, and an outlet pipe were examined using an experimental rig at the University of Technology, Sydney. Stepped triangular flow hydrographs were directed through the rig, with flowrates and HGLs being recorded electronically. Typical results are presented, showing the diversity and complexity of flow mechanisms. A classification of pit flow configurations is presented, as an aid to developing algorithms to define energy and pressure changes over the full cycle of filling and emptying of pipe systems.
File Size : 753,060 bytes
File Type : Adobe Acrobat Document
Chapter : IAHR World Congress Proceedings
Category : 34th Congress - Brisbane (2011)
Article : THEME 4: Responding to Shifting Water Resources
Date Published : 01/07/2011
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