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|Title: ||An efficient and accurate non-hydrostatic model with embedded Boussinesq-type like equations for surface wave modeling|
|Authors: ||Chih-Chieh Young;Chin H. W|
|Issue Date: ||2017-10-24T08:52:08Z
|Publisher: ||View issue TOC|
|Abstract: ||Abstract:A novel approach that embeds the Boussinesq-type like equations into an implicit non-hydrostatic model (NHM) is developed. Instead of using an integration approach, Boussinesq-type like equations with a reference velocity under a virtual grid system are introduced to analytically obtain an analytical form of pressure distribution at the top layer. To determine the size of vertical layers in the model, a top-layer control technique is proposed and the reference location is employed to optimize linear wave dispersion property. The efficiency and accuracy of this NHM with Boussinesq-type like equations (NHM-BTE) are critically examined through four free-surface wave examples. Overall model results show that NHM-BTE using only two vertical layers is capable of accurately simulating highly dispersive wave motion and wave transformation over irregular bathymetry.|
|Relation: ||60(10) pp. 27-53|
|Appears in Collections:||[海洋環境資訊系] 期刊論文|
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