Abstract
In this study, the water entry of wedges in regular waves is numerically investigated by a two-dimensional in-house numerical code. The numerical model based on the viscous Navier-Stokes (N-S) equations employs a high-order different method—the constrained interpolation profile (CIP) method to discretize the convection term. A Volume of Fluid (VOF)-type method, the tangent of hyperbola for interface capturing/slope weighting (THINC/SW) is employed to capture the free surface/interface, and an immersed boundary method is adopted to treat the motion of wedges. The momentum source function derived from the Boussinesq equation is applied as an internal wavemaker to generate regular waves. The accuracy of the numerical model is validated in comparison with experimental results in the literature. The results of water entry in waves are provided in terms of the impact force of wedge, velocity and pressure distributions of fluid. Considerable attention is paid to the effects of wave parameters and the position of wedge impacting the water surface. It is found that the existence of waves significantly influences the velocity and pressure field of fluid and impact force on the wedges.
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Foundation item: This study was partially supported by Foundation of Zhejiang Institute of Hydraulic and Estuary (Grant No. Haian A18003), the Science and Technology Plan Projects of Zhejiang water (Grant No. RB1803), Zhejiang Provincial Natural Science Foundation (Grant Nos. LQ19E090004 and LQ16E090004) and the Science and Technology Plan Projects of Zhejiang Province (Grant No. 2018F10026) and Tang Scholar.
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Hu, Zj., Zhao, Xz., Li, My. et al. Numerical Simulation of Water Entry of Wedges in Waves Using A CIP-Based Model. China Ocean Eng 35, 48–60 (2021). https://doi.org/10.1007/s13344-021-0005-4
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DOI: https://doi.org/10.1007/s13344-021-0005-4