1. Study on the Characteristics of Flow over a Seawall and Its Impact on Pedestrians under Solitary Wave Action.
- Author
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Hou, Yadong, Zhao, Xizeng, Tao, Gang, Huang, Zhaoyuan, Xu, Nanhui, and Leng, Zequan
- Subjects
OCEAN waves ,PEDESTRIANS ,TYPHOONS ,COMPUTER simulation ,SIMULATION methods & models ,SEA-walls ,TOURISTS - Abstract
In response to the incident of tourists falling into the sea due to waves on the seawall berm at Macau Road, Qingdao, during the passage of Typhoon "Songda" in 2022, a combination of numerical simulations and physical model experiments was performed to investigate the mechanics of the event, with emphasis on the wave flow characteristics and the flow evolution process on the seawall berm as well as the force exerted on a human body-equivalent cylinder model. The study found that the thickness of the return flow was significantly greater than that of the overtopping flow on the landward part of the berm. The recoil forces applied to the model on the berm were larger than the impact forces, and the ratio tended towards 1 as the wave height increased. In addition, the stability of pedestrians on the seawall berm was analyzed. The instability conditions for pedestrians in cross-wave flows differed slightly from those in floods. [ABSTRACT FROM AUTHOR]
- Published
- 2024
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