TRIS Online Record

Printable View

Title	OVERFLOW CHARACTERISTICS OF CYLINDRICAL WEIRS
Accession No	00748221
Authors	Chanson, H; Montes, J S
Corp. Authors / Publisher	Queensland University, Australia
Publication Date	19970400
Description	108 p.; Appendices(4); Figures; Photos; References; Tables
Languages	English
Abstract	The most common types of weirs are the broad-crested weir, the sharp-crested weir, the circular-crested weir and nowadays the ogee crest weir. Advantages of the cylindrical weir shape include the stable overflow pattern, the ease to pass floating debris, the simplicity of design compared to ogee crest design and the associated lower costs. Related applications include roller gates and inflated rubber dams. In this report, the authors describe new experiments of circular weir overflows, with eight cylinder sizes, for several weir heights and for five types of inflow conditions: partially-developed inflow, fully-developed inflow, upstream ramp, upstream undular hydraulic jump and upstream (breaking) hydraulic jump. Within the range of the experiments, the cylinder size, the weir height D/R and the presence of an upstream ramp had no effect on the discharge coefficient, flow depth at crest and energy dissipation. But the inflow conditions had substantial effects on the discharge characteristics and flow properties at the crest.
TRT Terms	Overflows ; Weirs
Other Terms	Cylinders; Discharge (Flow)
Subject Areas	H22 HYDROLOGY AND HYDRAULICS
ISBN	0867767219
Report Number	Research Report No. CE154
Availability	Queensland University, Australia Find a library where document is available Order Document: http://worldcat.org/isbn/0867767219
TRIS Files	HRIS
Database	TRIS Online

TRIS is a bibliographic database funded by sponsors of the Transportation Research Board (TRB), primarily the state departments of transportation and selected federal transportation agencies. TRIS Online is hosted by the National Transportation Library under a cooperative agreement between the Bureau of Transportation Statistics and TRB.