BS 3680-4D:1989
Superseded
A superseded Standard is one, which is fully replaced by another Standard, which is a new edition of the same Standard.
View Superseded by
Methods of measurement of liquid flow in open channels. Weirs and flumes Compound gauging structures
Hardcopy , PDF
15-08-2000
English
31-12-1989
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Foreword
Committees responsible
Methods
1. Scope
2. Definitions and symbols
3. Characteristics of compound gauging structures
4. Installation
5. Maintenance
6. Measurement of head
7. Computation of discharge
8. Errors in flow measurement
Appendices
A. Velocity distribution
B. Drowned (non-modular) flow
C. Examples of calculations
Tables
1. Values of Cv in terms of f (h1 / h1 + P)
2. Modular dicharge (in m(cubed)/s) are a compound
weir per metre of crest in terms of upstream head
Figures
1. Examples of velocity profiles in the approach channel
2. Example of compound weir design
3. Details of crest tappings for triangular profile
weirs
4. Drowned flow characteristics expressed in terms of
hp/H1 and H2/H1 versus f
5. Drowned flow reduction factor f in terms of
hp/h1 and (h1 / h1 + P b/B)
Measurement of flow in rivers and artificial channels.
| Committee |
CPI/113
|
| DevelopmentNote |
BS DRAFT 97/120653 DC REFERS TO A REVISION
|
| DocumentType |
Standard
|
| Pages |
28
|
| PublisherName |
British Standards Institution
|
| Status |
Superseded
|
| SupersededBy | |
| Supersedes |
| BS 3680-4I:1986 | Methods of measurement of liquid flow in open channels. Weirs and flumes V-shaped broad crested weirs |
| BS 3680-4E:1980 | Methods of measurement of liquid flow in open channels. Weirs and flumes Free overall weirs of finite crest width (rectangular broad-crested weirs) |
| BS 3680-4F:1981 | Methods of measurement of liquid flow in open channels. Weirs and flumes Round-nose horizontal crest weirs |
| BS 3680-4G:1981 | Methods of measurement of liquid flow in open channels. Weirs and flumes Flat-V weirs |
| BS 3680-1:1983 | Measurement of liquid flow in open channels. Glossary of terms |
| BS 3680-4C:1981 | Methods of measurement of liquid flow in open channels. Weirs and flumes Flumes |
| BS 3680-4H:1986 | Methods of measurement of liquid flow in open channels. Weirs and flumes Guide to the selection of flow gauging structures |
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