Please use this identifier to cite or link to this item: https://scholarbank.nus.edu.sg/handle/10635/50747
DC FieldValue
dc.titleTurbulence model for water flow over two-dimensional bed forms
dc.contributor.authorCheong, H.F.
dc.contributor.authorXue, H.
dc.date.accessioned2014-04-23T07:09:36Z
dc.date.available2014-04-23T07:09:36Z
dc.date.issued1997-05
dc.identifier.citationCheong, H.F.,Xue, H. (1997-05). Turbulence model for water flow over two-dimensional bed forms. Journal of Hydraulic Engineering 123 (5) : 402-408. ScholarBank@NUS Repository.
dc.identifier.issn07339429
dc.identifier.urihttp://scholarbank.nus.edu.sg/handle/10635/50747
dc.description.abstractA boundary-fitted numerical model adopting the general conservation of mass and momentum equation is applied to free surface water flow over a two-dimensional topography. A three-layer near-wall k-ε turbulence model is used to partly account for the effect of the separated-reattaching region in front of each sand wave. A modification of the streamline curvature is introduced to achieve a proper response to the degree of anisotropy between the normal stresses. The geometric shape of the train of sand waves is simulated by introducing a general curvilinear coordinate system. The numerical results were compared with the available experimental data reported by Raudkivi in 1963 and 1966, and more recently by Van Mierlo and De Ruiter, in 1988, and overall agreement has been satisfactory. Detailed calculations indicate that the two-equation k-ε, model with careful modifications can yield good predictions for the sand-wave problem. The present model provides a basis for the extended study of bed-load transport and resistance to flow arising from the movement of sediment bedforms.
dc.sourceScopus
dc.typeArticle
dc.contributor.departmentCIVIL ENGINEERING
dc.contributor.departmentMECHANICAL & PRODUCTION ENGINEERING
dc.description.sourcetitleJournal of Hydraulic Engineering
dc.description.volume123
dc.description.issue5
dc.description.page402-408
dc.identifier.isiutNOT_IN_WOS
Appears in Collections:Staff Publications

Show simple item record
Files in This Item:
There are no files associated with this item.

Page view(s)

67
checked on Oct 6, 2020

Google ScholarTM

Check


Items in DSpace are protected by copyright, with all rights reserved, unless otherwise indicated.