Generation of 3D regular and irregular waves using Navier–Stokes equations model with an internal wave maker |
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| Institution: | 1. Coastal Disaster Research Center, Korea Institute of Ocean Science & Technology, 787, Haeanro, Ansan 426–744, Republic of Korea;2. State Key Laboratory of Hydraulics and Mountain River Engineering, Sichuan University, Chengdu, Sichuan 610065, China;3. Department of Civil and Environmental Engineering, Hanyang University, 222 Wangsimni-ro, Seongdong-gu, Seoul 133–791, Republic of Korea;1. Mechanical Department, Khalifa University of Science and Technology, Abu Dhabi, UAE;2. Centre for Future Materials, University of Southern Queensland, Toowoomba, QLD, Australia;1. Department of Civil and Environmental Engineering, National University of Singapore, 1 Engineering Dr. 2, Block E1A 07-03, Singapore 117576, Singapore;2. R.M. Parsons Laboratory, Department of Civil and Environmental Engineering, Massachusetts Institute of Technology, 15 Vassar St, Room 48-317, Cambridge, MA 02139, USA |
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| Abstract: | Due to their capability of correctly representing wave characteristics, the number of numerical models based on Navier–Stokes equation (NSE) models has recently increased remarkably. One of the key challenges of this type of wave model, however, is to minimize the wave re-reflection from the incident boundary. Many numerical techniques have been developed to deal with this problem, and previous studies have reported on internal wave makers that employ NSE. Research on generation and transformation of irregular waves using a three-dimensional NSE model, however, has begun very recently, and few studies have yet been reported. In this study, a three-dimensional numerical model was applied to generate irregular waves, and transformation of irregular waves was simulated in a numerical wave tank. The model was first verified by applying it to simple numerical tests in two dimensions. The model was then used to generate directional monochromatic and irregular waves in three dimensions. The numerical results were compared with the analytical solutions, and good agreement was observed. Finally, the model was applied to simulate the transformation of irregular waves over an uneven bottom geometry in a wave tank. |
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