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Evaluation of the Application of One-Dimentional Non-Linear Shallow Water Equations in Nearshore Shallow Water
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Ahmad Shanehsazzadeh   , Balal Moradvasi |
| , a.shanehsazzadeh@eng.ui.ac.ir |
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Abstract: (12499 Views) |
| There are numbers of models for prediction of hydrodynamic parameters at nearshore according to
different assumptions. However, the capability and comprehensiveness of the models in different
conditions are still questionable. In this article, the results of numerical model based on Non-Linear
Shallow Water (NSW) equations were compared to the results of MIKE21 BW 1DH which are based on
Boussinesq equations in order to investigate the level of the accuracy of NSW in different beach slopes
and bed particle sizes, under various incident wave conditions. The results of two numerical models in
terms of water depth are also compared with field data. No clear advantage of Boussinesq model on NSW
model is evident in prediction of water depth in the surf and swash zone. This will encourage application
of NSW equation (due to relative simplicity) for prediction of sediment transport and beach profile
evolution in the surf and swash zone. |
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| Keywords: Non-Linear Shallow Water equations (NSW), Boussinesq equations, MIKE21 BW 1DH, Field data. |
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Full-Text [PDF 123 kb]
(2199 Downloads)
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Type of Study: Research/ Original/ Regular Article |
Received: 2013/12/25 | Revised: 2014/03/15 | Accepted: 2013/12/25 | ePublished: 2013/12/25
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