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An effective method for nonlinear wave-current generation and absorption
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DOI：10.1016/j.coastaleng.2023.104359.png)
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Abstract
En 中文
The approach used for wave-current generation and absorption is crucial for simulating waves propagating on currents in a numerical tank. An effective method for wave-current generation and absorption is proposed and validated in this study. In this approach, the numerical tank is divided into five regions: two linear, one nonlinear, and two transitional regions. A linear region is set at both ends of the numerical tank. In the middle of the numerical tank, a nonlinear region is used to simulate waves in the presence of currents. A transition region is introduced between the linear and nonlinear regions. An efficient damping function is implemented to absorb the reflected waves. To validate the new method for wave-current generation and absorption, numerical simulations of waves in the presence of currents are performed. Three types of currents are considered: zero-vorticity, constant non-zero vorticity and variable vorticity. The results indicate that the new method for wave-current generation and absorption is effective and applicable for simulating waves in the presence of ambient currents.
Keywords:
Wave-current interaction
Wave-current generation
Wave-current absorption
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