COMPUTATION OF WAVE CHARACTERISTICS IN NINH THUAN - BINH THUAN WATERS BY SWAN MODEL ON UNSTRUCTURED GRIDS

Authors

  • Tran Van Chung Institute of Oceanography, VAST
  • Nguyen Huu Huan Institute of Oceanography, VAST
  • Nguyen Truong Thanh Hoi Institute of Oceanography, VAST

DOI:

https://doi.org/10.15625/1859-3097/16/2/7387

Keywords:

Wave spectrum, SWAN, unstructured grid, finite difference, finite element.

Abstract

The wave model SWAN (version 41.01A) with unstructured grid has been applied for Ninh Thuan - Binh Thuan waters. This model is SWAN Cycle III using a vertex-based, fully implicit finite difference method. It can accommodate unstructured meshes with a high variability in geographic resolution suitable for representing complicated bottom topography in shallow areas and irregular shoreline. In particular, the unstructured meshes (triangular meshes) can be used to calculate the flow by finite element method. This is very helpful in solving the problems of interactions between wave-current and wave-wave. The initial results indicate that the approach to SWAN model is reasonable, stable for any time step while permitting local mesh refinements in interested areas. A lot of applications are shown to verify the correctness and numerical accuracy of the unstructured version of SWAN.

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Author Biography

Tran Van Chung, Institute of Oceanography, VAST

Tiến sĩ, Nghiên cứu viên chính, Trưởng phòng Sinh thái và môi trường biển

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Published

2016-06-30

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Articles