Large-eddy simulation of flow in a rectangular open channel

Authors
Shi, J Thomas, TG Williams, JJR
Citation
J. Shi et al., Large-eddy simulation of flow in a rectangular open channel, J HYDR RES, 37(3), 1999, pp. 345-361
Citations number
24
Categorie Soggetti
Civil Engineering
Journal title
JOURNAL OF HYDRAULIC RESEARCH
ISSN journal
00221686 → ACNP
Volume
37
Issue
3
Year of publication
1999
Pages
345 - 361
Database
ISI
SICI code
0022-1686(1999)37:3<345:LSOFIA>2.0.ZU;2-Q
Abstract
Turbulent flow in a narrow open channel is investigated using the large-edd y simulation (LES) technique in which the surface is allowed to freely defo rm. A relatively large Reynolds number of 90,400 (defined as 4RUmean/) is u sed in the simulation and it is shown that good resolution is required in o rder to reproduce the effects of the turbulence-driven secondary currents. The simulated results are in good agreement with experimental measurements and previous calculations.