Use of Brink Depth in Discharge Measurement

The behavior of free surface flow at a rectangular free overfall is studied experimentally to obtain a relation between the brink depth and the flow rate. A series of experiments were conducted in a tilting flume with wide range of flow rates covering subcritical, critical, supercritical regimes, an...

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Bibliographic Details
Published inJournal of irrigation and drainage engineering Vol. 134; no. 1; pp. 89 - 95
Main Authors Tiğrek, Şahnaz, Firat, C. Ersen, Ger, A. Metin
Format Journal Article
LanguageEnglish
Published Reston, VA American Society of Civil Engineers 01.02.2008
Subjects
Agricultural and forest climatology and meteorology. Irrigation. Drainage
Agronomy. Soil science and plant productions
Biological and medical sciences
Fundamental and applied biological sciences. Psychology
General agronomy. Plant production
Irrigation. Drainage
TECHNICAL PAPERS
Discharge coefficient
Supercritical flow
Hydraulics
Weirs
Open channel flow
Discharge measurement
Subcritical flow
Weir
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Summary:The behavior of free surface flow at a rectangular free overfall is studied experimentally to obtain a relation between the brink depth and the flow rate. A series of experiments were conducted in a tilting flume with wide range of flow rates covering subcritical, critical, supercritical regimes, and two different roughnesses in order to develop a relationship between the discharge and the brink depth. An equation is proposed to determine the flow rate using the brink depth for a channel of known roughness and bed slope.
Bibliography:ObjectType-Article-2
SourceType-Scholarly Journals-1
ObjectType-Feature-1
content type line 23
ISSN:0733-9437
1943-4774
DOI:10.1061/(ASCE)0733-9437(2008)134:1(89)