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http://dx.doi.org/10.9765/KSCOE.2014.26.2.96

Numerical Model for Predicting Sand Bar Formation around River Mouth  

Kuroiwa, Masamitsu (Department of Civil Engineering, Graduate School of Engineering, Tottori University)
Matsubara, Yuhei (Department of Civil Engineering, Graduate School of Engineering, Tottori University)
Suzuki, Yoko (Department of Civil Engineering, Graduate School of Engineering, Tottori University)
Kuchiishi, Takayuki (IDEA Consultants, Inc.)
Publication Information
Journal of Korean Society of Coastal and Ocean Engineers / v.26, no.2, 2014 , pp. 96-102 More about this Journal
Abstract
A three-dimensional beach evolution model was presented to predict morphodynamics around a river mouth. The presented model was based on the depth-averaged (2DH) and quasi three-dimensional (Q-3D) nearshore current modules, and the model took into account shoreline changes, the effect of advection diffusion of suspended load and discharged sediments from the river. First, the 3D beach evolution model was applied to the formation of sand spits and terrace at the river mouth in order to investigate the performance of the model. Secondly, the model was applied to the river mouth at the Ara River, facing the Sea of Japan. The formation of sand spit at the Ara River in winter season was reproduced. The computed result showed qualitatively agreement with field site observation.
Keywords
morphodynamic; sediment transport; river mouth; numerical simulation;
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  • Reference
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