Methods of measurement of liquid flow in open channels. Weirs and flumes Round nose horizontal broad-crested weirs

Available format(s)

Hardcopy , PDF

Language(s)

English

Published date

31-08-1990

Publisher

British Standards Institution

Deals with the measurement of flow under steady flow conditions. Covers installation, maintenance, head measurement, design details, discharge equation, uncertainties in flow measurement and an example on computation of discharge.

1.1 This International Standard deals with the measurement of flow in rivers and artificial channels under steady flow conditions using round-nose horizontal broad-crested weirs (see Figure 1 and Figure 2).

1.2 The flow conditions considered are limited to steady flows which are uniquely dependent on the upstream head. Drowned flows, which depend on downstream as well as upstream levels, are not covered by this International Standard.

1.3 The round-nose horizontal broad-crested weir has a good discharge range and modular limit and is appropriate for use in small- and medium-sized installations. It is particularly robust and insensitive to minor damage.

Committee	CPI/113
DevelopmentNote	Also numbered as ISO 4374 Supersedes 88/22888 DC and BS 3680-4F(1981) (07/2005)
DocumentType	Standard
Pages	24
PublisherName	British Standards Institution
Status	Current
Supersedes	BS 3680-4F:1981

BS 3680-1:1983	Measurement of liquid flow in open channels. Glossary of terms
BS 5844:1980	Methods of measurement of fluid flow: estimation of uncertainty of a flow-rate measurement