ENERGY AND MOMENTUM IN ONE-DIMENSIONAL OPEN-CHANNEL FLOW

Authors
FIELD WG LAMBERT MF WILLIAMS BJ
Citation
Wg. Field et al., ENERGY AND MOMENTUM IN ONE-DIMENSIONAL OPEN-CHANNEL FLOW, Journal of Hydraulic Research, 36(1), 1998, pp. 29-42
Citations number
13
Categorie Soggetti
Water Resources","Engineering, Civil
Journal title
Journal of Hydraulic Research → ACNP
ISSN journal
00221686
Volume
36
Issue
1
Year of publication
1998
Pages
29 - 42
Database
ISI
SICI code
0022-1686(1998)36:1<29:EAMIOO>2.0.ZU;2-4
Abstract
The equations of continuity, momentum and energy are derived, incorpor ating depth-dependent correction factors for velocity distributions ov er compound cross sections. Tt is shown that the friction slope and th e energy slope are equivalent in steady uniform flow but not in unstea dy flow. The difference between the two forms is explained and reasons are given for the preferential use of the momentum equation. Comparis ons of backwater profiles are presented.