COUPLING VOF/PLIC AND EMBEDDING METHOD FOR SIMULATING WAVE BREAKING ON A SLOPING BEACH

Authors

Tai-Wen Hsu, Department of Habor and River Engineering, National Taiwan Ocean University; Research Center for Ocean Energy and Strategies, Keelung, Taiwan Department of Hydraulic and Ocean Engineering, National Chen Kung University, Tainan, TaiwanFollow
Chih-Min Hsieh, Department of Maritime Information and Technology, National Kaohsiung Marine University, Kaohsiung, Taiwan
Chin-Yen Tsai, Department of Hydraulic and Ocean Engineering, National Chen Kung University, Tainan, Taiwan
Shan-Hwei Ou, Department of Hydraulic and Ocean Engineering, National Chen Kung University, Tainan, Taiwan

Abstract

A 2-D numerical model was developed to simulate wave breaking on a sloping beach. The model solves the Reynolds Averaged Navier-Stokes (RANS) equations coupled with the k-ε turbulence closure model. To track free surface configurations, the volume of fluid with piecewise linear interface calculation (VOF/PLIC) is employed. An embedding method (EB) is also used to treat complex bottom topography. Coupling these two methods for simulating wave breaking on a sloping beach, good agreement between numerical results and laboratory observations is found for spilling breaker. Wave breaking characteristics is in terms of free surface profiles, mean velocities and wave heights based on the numerical results. Turbulence transports under wave breaking were also investigated.

Recommended Citation

Hsu, Tai-Wen; Hsieh, Chih-Min; Tsai, Chin-Yen; and Ou, Shan-Hwei (2015) "COUPLING VOF/PLIC AND EMBEDDING METHOD FOR SIMULATING WAVE BREAKING ON A SLOPING BEACH," Journal of Marine Science and Technology: Vol. 23: Iss. 4, Article 13.
DOI: 10.6119/JMST-014-1204-2
Available at: https://jmstt.ntou.edu.tw/journal/vol23/iss4/13