Numerical Model for Predicting Sand Bar Formation around River Mouth
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초록
A three-dimensional beach evolution model was presented to predict morphodynamics around a rivermouth. The presented model was based on the depth-averaged (2DH) and quasi three-dimensional (Q-3D) nearshorecurrent modules, and the model took into account shoreline changes, the effect of advection diffusion of suspendedload and discharged sediments from the river. First, the 3D beach evolution model was applied to the formation ofsand spits and terrace at the river mouth in order to investigate the performance of the model. Secondly, the modelwas applied to the river mouth at the Ara River, facing the Sea of Japan. The formation of sand spit at the AraRiver in winter season was reproduced. The computed result showed qualitatively agreement with field siteobservation.
Abstract
A three-dimensional beach evolution model was presented to predict morphodynamics around a rivermouth. The presented model was based on the depth-averaged (2DH) and quasi three-dimensional (Q-3D) nearshorecurrent modules, and the model took into account shoreline changes, the effect of advection diffusion of suspendedload and discharged sediments from the river. First, the 3D beach evolution model was applied to the formation ofsand spits and terrace at the river mouth in order to investigate the performance of the model. Secondly, the modelwas applied to the river mouth at the Ara River, facing the Sea of Japan. The formation of sand spit at the AraRiver in winter season was reproduced. The computed result showed qualitatively agreement with field siteobservation.
참고문헌 (10)
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