Chapter
Apr 26, 2012
Influence of Flow Development Time on the Residence Time Distribution and Flow Pattern in a Scale Model of a Water Treatment Plant Clearwell
Authors: Xiaoli Yu [email protected], K. A. Mazurek [email protected], G. Putz [email protected], and C. Albers [email protected]Author Affiliations
Publication: World Environmental and Water Resources Congress 2008: Ahupua'A
Abstract
This paper presents results of scale model testing of. the Glenmore Water Treatment Plant NE Clearwell in Calgary, Alberta, Canada. This clearwell has a perforated baffle wall at its inlet, a 4-pass serpentine system, and a weir at the outlet. The model was operated based on Froude similarity and had a scale of 1:19. Tracer studies and flow visualization were carried out for three flow rates. From the residence time distribution developed from the tracer tests, it was seen the baffle factor and Morril Dispersion index were affected by the time between when the flow in the model and tracer test was initiated. It took approximately 10 h of flow development time for the results to reach steady-state values for the minimum flow rate. At higher flows, the baffle factor was not as strongly affected by flow development time, however the Morril Dispersion index better matched prototype values at longer times.
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Published In
World Environmental and Water Resources Congress 2008: Ahupua'A
Pages: 1 - 10
Copyright
© 2008 American Society of Civil Engineers.
History
Published online: Apr 26, 2012
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ASCE Technical Topics:
- Baffles (hydraulic)
- Engineering fundamentals
- Engineering mechanics
- Environmental engineering
- Equipment and machinery
- Flow (fluid dynamics)
- Flow distribution
- Flow duration
- Flow patterns
- Fluid dynamics
- Fluid mechanics
- Hydraulic engineering
- Hydraulic structures
- Hydrologic engineering
- Inertia
- Levees and dikes
- Models (by type)
- Probe instruments
- Residence time
- Scale models
- Statics (mechanics)
- Water and water resources
- Water treatment
- Water treatment plants
Authors
Affiliations
Graduate student, Dept. of Civil & Geological Engineering, University of Saskatchewan, 57 Campus Drive, Saskatoon, Saskatchewan, Canada S7N 1A9. E-mail: [email protected]
M.ASCE
Assist. Professor, Dept. of Civil & Geol. Engineering, University of Saskatchewan, 57 Campus Drive, Saskatoon, Saskatchewan, Canada S7N 1A9. E-mail: [email protected]
Associate Professor, Dept. of Civil & Geol. Engineering, University of Saskatchewan, 57 Campus Drive, Saskatoon, Saskatchewan, Canada S7N 1A9. E-mail: [email protected]
Senior Water Resources Engineer, AMEC, 221-18th Street SE, Calgary, Alberta T7K 1A9. E-mail: [email protected]
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