Simulation of wave propagation over a submerged bar using the VOF method with a two-equation k–ε turbulence modeling
✍ Scribed by Y.M. Shen; C.O. Ng; Y.H. Zheng
- Publisher
- Elsevier Science
- Year
- 2004
- Tongue
- English
- Weight
- 127 KB
- Volume
- 31
- Category
- Article
- ISSN
- 0029-8018
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✦ Synopsis
A two-equation k-e turbulence model is used in this paper to simulate the propagation of cnoidal waves over a submerged bar, where the free surface is handled by the volume-offluid (VOF) method. Using a VOF partial-cell variable and a donor-acceptor method, the model is capable of treating irregular boundaries, including arbitrary bottom topography and internal obstacles, where the no-slip condition is satisfied. The model also allows the viscous sublayer to be modeled by a wall function approximation implemented in the grid nodes that are immediately adjacent to a wall boundary. The numerical model applied to the propagation of cnoidal waves over a submerged bar can produce results that are in general agreement with some laboratory measurements. Some remarks arising from the comparison between the computational and experimental results are presented.