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Experimental studies of rip current systems induced by the intersecting waves near a groin
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Sheng Yan1, 2, 3, Zhili Zou2, *, Jie Xu2, Chengshu Chang2, Zaijin You1, 3, Dong Wang4
Haiyang Xuebao | 2023, 45(10) : 135 - 146
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Haiyang Xuebao | 2023, 45(10): 135-146
• Article •
Experimental studies of rip current systems induced by the intersecting waves near a groin
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Sheng Yan1, 2, 3, Zhili Zou2, *, Jie Xu2, Chengshu Chang2, Zaijin You1, 3, Dong Wang4
Affiliations
  • 1College of Transportation Engineering, Dalian Maritime University, Dalian 116026, China
  • 2State Key Laboratory of Coastal and Offshore Engineering, Dalian University of Technology, Dalian 116024, China
  • 3Center for Ports and Maritime Safety, Dalian Maritime University, Dalian 116026, China
  • 4College of Environmental Sciences and Engineering , Dalian Maritime University, Dalian 116026, China
Published: 2023-10-01 doi: 10.12284/hyxb2023149
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Rip currents are narrow and concentrated seaward-directed flows and play an important role on coastal morphodynamics, mass transport and swimmer safety. As the intersecting wave field caused by wave reflection of coastal structures is not uniform alongshore, the flow characteristics and spatial distribution of rip currents are different from those of uniform intersecting waves on an open coast. The reflection of waves on cross-shore coastal structures will lead to longshore standing waves, and rip currents will occur in the area of standing wave nodes because of the small wave height, which is one of the generation mechanisms for rip currents. In this study, the characteristics of rip current systems near a coastal structure on a barred beach are given by a laboratory experiment. The influence of the longshore variation of wave height on the flow balance of each rip current unit is discussed. The results showed that the existence of structure drives a longshore current away from the structure and causes the water exchange between each rip current unit. The lateral currents between rip current units are found to make contributions to the rip current transport of each rip current unit and the contributions mainly depend on the relative position of the unit to the structure.

rip current system  /  intersecting waves  /  barred beach  /  coastal structures  /  physical experiments
Sheng Yan, Zhili Zou, Jie Xu, Chengshu Chang, Zaijin You, Dong Wang. Experimental studies of rip current systems induced by the intersecting waves near a groin[J]. Haiyang Xuebao, 2023 , 45 (10) : 135 -146 . DOI: 10.12284/hyxb2023149
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Article Info
doi: 10.12284/hyxb2023149
  • Receive Date：2023-02-10
  • Online Date：2025-12-28
  • Published：2023-10-01
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History
  • Received：2023-02-10
  • Revised：2023-06-10
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Affiliations
    1College of Transportation Engineering, Dalian Maritime University, Dalian 116026, China
    2State Key Laboratory of Coastal and Offshore Engineering, Dalian University of Technology, Dalian 116024, China
    3Center for Ports and Maritime Safety, Dalian Maritime University, Dalian 116026, China
    4College of Environmental Sciences and Engineering , Dalian Maritime University, Dalian 116026, China
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Citations
表12种不同金属材料的力学参数
科
Family		 属数
Number of
genus		 种数
Number of
species		 占总种数比例
Percentage of
total species (%)		 属
Genus		 种数
Number of
species		 占总种数比例
Percentage of total
species (%)
鹅膏菌科Amanitaceae 2 11 5.26 鹅膏菌属 Amanita 10 4.78
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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