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Numerical simulation of the hydrodynamic process of rip current hazard
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Haiping Tian1, Lei Chen1, 2, *, Wei Wang1, Libiao Xin1
Haiyang Xuebao | 2021, 43(12) : 92 - 101
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Haiyang Xuebao | 2021, 43(12): 92-101
• Article •
Numerical simulation of the hydrodynamic process of rip current hazard
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Haiping Tian1, Lei Chen1, 2, *, Wei Wang1, Libiao Xin1
Affiliations
  • 1National Demonstration Center for Experimental Mechanics Education, Taiyuan University of Technology, Taiyuan 030024, China
  • 2School of Mechanics and Civil Architecture, Northwest Polytechnic University, Xi 'an 710129, China
Published: 2021-12-30 doi: 10.12284/hyxb2021175
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Rip current is an important part of nearshore current. Affected by special beach topography, waves will form a high velocity flow moving along the offshore direction, which can quickly take people away from the shore and pose a threat to beach safety. In order to further explore the formation mechanism and hydrodynamics characteristics, three-dimensional numerical simulation of rip current was carried out. In this paper, based on the second-order Stokes wave theory, a typical sandbar model with variable cross-section is adopted and used to generate rip current. The free liquid surface is captured by volume of fluid method. The rip current flow field distribution laws of instantaneous velocity, time-averaged velocity and pressure are analyzed and made some discoveries: there is a pair of opposite water circulation systems between the bar and the shoreline. By comparing the velocity distribution of rip current a different depth, the interaction between waves and rip currents is understood. Furthermore, the influence of incident wave height on intensity and distribution of rip current is also studied, which deepens the understanding of the hydrodynamic process of rip current.

rip current  /  numerical simulation  /  second-order Stokes waves  /  three-dimensional flow field  /  barred beach
Haiping Tian, Lei Chen, Wei Wang, Libiao Xin. Numerical simulation of the hydrodynamic process of rip current hazard[J]. Haiyang Xuebao, 2021 , 43 (12) : 92 -101 . DOI: 10.12284/hyxb2021175
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Year 2021 volume 43 Issue 12
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Article Info
doi: 10.12284/hyxb2021175
  • Receive Date：2020-09-03
  • Online Date：2026-02-26
  • Published：2021-12-30
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  • Received：2020-09-03
  • Revised：2020-10-30
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Affiliations
    1National Demonstration Center for Experimental Mechanics Education, Taiyuan University of Technology, Taiyuan 030024, China
    2School of Mechanics and Civil Architecture, Northwest Polytechnic University, Xi 'an 710129, China
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表12种不同金属材料的力学参数
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Number of
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小菇科 Mycenaceae 2 12 5.74 丝盖伞属 Inocybe 5 2.39
多孔菌科 Polyporaceae 8 14 6.70 蜡蘑属 Laccaria 5 2.39
红菇科 Russulaceae 3 23 11.00 小皮伞属 Marasmius 6 2.87
小菇属 Mycena 11 5.26
光柄菇属 Pluteus 5 2.39
红菇属 Russula 17 8.13
栓菌属 Trametes 5 2.39
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