Publication:
A Comparison of a coupled and uncoupled numerical model of alluvial flows, COUPFLEX and HEC6. December 1996.

dc.contributor.author Saiedi, S. en_US
dc.contributor.author Cox, R. J. en_US
dc.date.accessioned 2021-11-25T12:40:23Z
dc.date.available 2021-11-25T12:40:23Z
dc.date.issued 1996 en_US
dc.description.abstract The performance of an uncoupled numeriacl model of alluvial frlow is compared with that of a coupled model. The uncoupled is the well known HEC6 and the coupled model is the newly developed non-dimensional model of riverine flow called COUPFLEX. The models are applied to the data obtained from some laboratory tests on river sedimentation carried out exclusively for this purpose. The experimental work and procedure are described and the models reviewed. Application of the models to experimental data associated with fast flow and sedimentation processes, reveals the preferability of the coupled approach. The strong inter-relation between water and and sediment components of alluvial flows is recognised in the coupled approach and this gives it advantages over the traditional uncoupled method in which the calculations of the water flow and bed level variations are separated to various degrees. Simulation of several carefully performed laboratory tests highlights three beneficial aspects of a coupled approach. The simulations show that a coupled model (1) gives more accurate results when rapid river processes are involved, (2) obviates some computational difficulties such as production of false bed level oscillations, and (3) allows more flexibilioty in the selection of the size of the computational time step. en_US
dc.description.sponsorship Unisearch Ltd. en_US
dc.identifier.isbn 0858240076 en_US
dc.identifier.uri http://hdl.handle.net/1959.4/36208
dc.language English
dc.language.iso EN en_US
dc.publisher University of New South Wales - Water Research Laboratory en_US
dc.rights CC BY-NC-ND 3.0 en_US
dc.rights.uri https://creativecommons.org/licenses/by-nc-nd/3.0/au/ en_US
dc.source Legacy MARC en_US
dc.source WRL Digitisation
dc.subject.other Alluvium en_US
dc.subject.other Sediment transport en_US
dc.subject.other Flow en_US
dc.subject.other Fluvial sediments en_US
dc.subject.other Model studies en_US
dc.subject.other COUPFLEX en_US
dc.subject.other HEC6 en_US
dc.title A Comparison of a coupled and uncoupled numerical model of alluvial flows, COUPFLEX and HEC6. December 1996. en_US
dc.type Report en
dcterms.accessRights open access
dspace.entity.type Publication en_US
unsw.accessRights.uri https://purl.org/coar/access_right/c_abf2
unsw.description.notePublic Supplementary notes: HEC6, COUPFLEX en_US
unsw.identifier.doi https://doi.org/10.4225/53/578d6fe3e0879 en_US
unsw.publisher.place Sydney en_US
unsw.relation.faculty Engineering
unsw.relation.ispartofreportnumber UNSW Water Research Laboratory Report No. 186 en_US
unsw.relation.originalPublicationAffiliation Saiedi, S., Water Research Laboratory, Faculty of Engineering, UNSW en_US
unsw.relation.originalPublicationAffiliation Cox, R. J., Water Research Laboratory, Faculty of Engineering, UNSW en_US
unsw.relation.school School of Civil and Environmental Engineering *
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