Velocity and pressure measurements on a broad-crested weir: Physical measurements

Felder, Stefan and Chanson, Hubert (2012). Velocity and pressure measurements on a broad-crested weir: Physical measurements. In: , Hydraulic Structures into the 21st century: a critical role in our society. 4th IAHR International Symposium on Hydraulic Structures, Porto, Portugal, (1-8). 9-11 February 2012.

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Author Felder, Stefan
Chanson, Hubert
Title of paper Velocity and pressure measurements on a broad-crested weir: Physical measurements
Conference name 4th IAHR International Symposium on Hydraulic Structures
Conference location Porto, Portugal
Conference dates 9-11 February 2012
Proceedings title Hydraulic Structures into the 21st century: a critical role in our society
Place of Publication Portugal
Publisher APRH - Associação Portuguesa dos Recursos Hídricos (Portuguese Water Resources Association)
Publication Year 2012
Sub-type Fully published paper
ISBN 97898985090017
Issue 2
Start page 1
End page 8
Total pages 8
Collection year 2013
Language eng
Abstract/Summary Basic experiments were conducted on a large-size broad crested weir with an upstream rounded corner. Detailed velocity and pressure measurements were performed for a range of flow conditions. The results showed the rapid flow re-distribution at the upstream end of the weir, as well as next to the weir brink at large flow rates. Assuming non-uniform velocity and nonhydrostatic pressure distributions, it is shown that critical flow conditions were achieved above the whole crest length. The velocity measurements highlighted a developing boundary layer. The data differed from the smooth turbulent boundary layer theory, although the present results were consistent with earlier studies.
Keyword Broad-crested weir
Velocity and pressure distributions
Critical flow conditions
Turbulent boundary layer
Q-Index Code E1
Q-Index Status Confirmed Code
Institutional Status UQ
Additional Notes The full bibliographic details are: FELDER, S., and CHANSON, H. (2012). "Velocity and Pressure Measurements on a Broad-Crested Weir: Physical Measurements." Proc. 4th IAHR International Symposium on Hydraulic Structures, APRH - Associação Portuguesa dos Recursos Hídricos (Portuguese Water Resources Association), J. MATOS, S. PAGLIARA & I. MEIRELES Eds., 9-11 February 2012, Porto, Portugal, Paper 2, 8 pages (CD-ROM) (ISBN 978-989-8509-01-7).

Document type: Conference Paper
Collections: School of Civil Engineering Publications
Official 2013 Collection
 
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Created: Sat, 11 Feb 2012, 15:47:15 EST by Hubert Chanson on behalf of School of Civil Engineering