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dc.contributor.authorPu, Jaan H.*
dc.contributor.authorLim, S.Y.*
dc.date.accessioned2016-05-10T11:28:52Z
dc.date.available2016-05-10T11:28:52Z
dc.date.issued2014-02
dc.identifier.citationPu JH and Lim SY (2014) Efficient numerical computation and experimental study of temporally long equilibrium scour development around abutment. Environmental Fluid Mechanics. 14(1): 69-86.en_US
dc.identifier.urihttp://hdl.handle.net/10454/8325
dc.descriptionYesen_US
dc.description.abstractFor the abutment bed scour to reach its equilibrium state, a long flow time is needed. Hence, the employment of usual strategy of simulating such scouring event using the 3D numerical model is very time consuming and less practical. In order to develop an applicable model to consider temporally long abutment scouring process, this study modifies the common approach of 2D shallow water equations (SWEs) model to account for the sediment transport and turbulence, and provides a realistic approach to simulate the long scouring process to reach the full scour equilibrium. Due to the high demand of the 2D SWEs numerical scheme performance to simulate the abutment bed scouring, a recently proposed surface gradient upwind method (SGUM) was also used to improve the simulation of the numerical source terms. The abutment scour experiments of this study were conducted using the facility of Hydraulics Laboratory at Nanyang Technological University, Singapore to compare with the presented 2D SGUM-SWEs model. Fifteen experiments were conducted over a total period of 3059.7 hours experimental time (over 4.2 months). The comparison shows that the 2D SGUM-SWEs model gives good representation to the experimental results with the practical advantage.en_US
dc.language.isoenen_US
dc.relation.isreferencedbyhttp://dx.doi.org/10.1007/s10652-013-9286-3en_US
dc.rights© 2014 Springer Netherlands. Full-text reproduced in accordance with the publisher’s self-archiving policy.en_US
dc.subjectAbutment; Equilibrium scour; Experiment; Numerical computation; SGUM model; SWEs model; Time developmenten_US
dc.titleEfficient numerical computation and experimental study of temporally long equilibrium scour development around abutmenten_US
dc.status.refereedYesen_US
dc.date.Accepted2013
dc.date.application2013-05-01
dc.typeArticleen_US
dc.type.versionAccepted Manuscripten_US
refterms.dateFOA2018-07-25T13:26:31Z


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