Experimental Study of Flow Kinematics and Impacting Pressures on a Suspended Horizontal Plate by Extreme Waves

The flow kinematics and impacting pressures on a suspended horizontal plate under extreme waves were investigated experimentally. Three different stages of extreme waves, unbreaking, incipient breaking, and broken, were separately generated using a dispersive focusing method. The flow field kinemati...

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Main Authors: Weizhen Kong, Jun Yang, Xuyang Niu, Liangjun Wen, Haitao Li, Yuxiang Ma, Shuai Chen
Format: Article
Language:English
Published: MDPI AG 2023-07-01
Series:Water
Subjects:
Online Access:https://www.mdpi.com/2073-4441/15/15/2771
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author Weizhen Kong
Jun Yang
Xuyang Niu
Liangjun Wen
Haitao Li
Yuxiang Ma
Shuai Chen
author_facet Weizhen Kong
Jun Yang
Xuyang Niu
Liangjun Wen
Haitao Li
Yuxiang Ma
Shuai Chen
author_sort Weizhen Kong
collection DOAJ
description The flow kinematics and impacting pressures on a suspended horizontal plate under extreme waves were investigated experimentally. Three different stages of extreme waves, unbreaking, incipient breaking, and broken, were separately generated using a dispersive focusing method. The flow field kinematics around the plate during the slamming process was measured using a combination of particle image velocimetry and bubble image velocimetry techniques. We found that for aerated areas, there are significant differences in flow patterns under different conditions. The velocity distribution in aeration areas is more discrete. The slamming peak on the upper surface is influenced greatly by the aeration effect, resulting in the maximum slamming peak of the unbreaking case being 3.8 kPa, which is 0.41 times larger than that of the incipient-breaking case and 1.12 times larger than that of the broken case. However, for the area below the plate, the slamming force and flow evolution under different types of breaking exhibit similarity.
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spelling doaj.art-9bb3a2dee34947519e5b4859818695082023-11-18T23:47:32ZengMDPI AGWater2073-44412023-07-011515277110.3390/w15152771Experimental Study of Flow Kinematics and Impacting Pressures on a Suspended Horizontal Plate by Extreme WavesWeizhen Kong0Jun Yang1Xuyang Niu2Liangjun Wen3Haitao Li4Yuxiang Ma5Shuai Chen6China Ship Scientific Research Center, Wuxi 214122, ChinaChina Ship Scientific Research Center, Wuxi 214122, ChinaState Key Laboratory of Coastal and Offshore Engineering, Dalian University of Technology, Dalian 116023, ChinaChina Ship Scientific Research Center, Wuxi 214122, ChinaChina Ship Scientific Research Center, Wuxi 214122, ChinaState Key Laboratory of Coastal and Offshore Engineering, Dalian University of Technology, Dalian 116023, ChinaChina Ship Scientific Research Center, Wuxi 214122, ChinaThe flow kinematics and impacting pressures on a suspended horizontal plate under extreme waves were investigated experimentally. Three different stages of extreme waves, unbreaking, incipient breaking, and broken, were separately generated using a dispersive focusing method. The flow field kinematics around the plate during the slamming process was measured using a combination of particle image velocimetry and bubble image velocimetry techniques. We found that for aerated areas, there are significant differences in flow patterns under different conditions. The velocity distribution in aeration areas is more discrete. The slamming peak on the upper surface is influenced greatly by the aeration effect, resulting in the maximum slamming peak of the unbreaking case being 3.8 kPa, which is 0.41 times larger than that of the incipient-breaking case and 1.12 times larger than that of the broken case. However, for the area below the plate, the slamming force and flow evolution under different types of breaking exhibit similarity.https://www.mdpi.com/2073-4441/15/15/2771plunging wavesplate structurewave slammingflow field
spellingShingle Weizhen Kong
Jun Yang
Xuyang Niu
Liangjun Wen
Haitao Li
Yuxiang Ma
Shuai Chen
Experimental Study of Flow Kinematics and Impacting Pressures on a Suspended Horizontal Plate by Extreme Waves
Water
plunging waves
plate structure
wave slamming
flow field
title Experimental Study of Flow Kinematics and Impacting Pressures on a Suspended Horizontal Plate by Extreme Waves
title_full Experimental Study of Flow Kinematics and Impacting Pressures on a Suspended Horizontal Plate by Extreme Waves
title_fullStr Experimental Study of Flow Kinematics and Impacting Pressures on a Suspended Horizontal Plate by Extreme Waves
title_full_unstemmed Experimental Study of Flow Kinematics and Impacting Pressures on a Suspended Horizontal Plate by Extreme Waves
title_short Experimental Study of Flow Kinematics and Impacting Pressures on a Suspended Horizontal Plate by Extreme Waves
title_sort experimental study of flow kinematics and impacting pressures on a suspended horizontal plate by extreme waves
topic plunging waves
plate structure
wave slamming
flow field
url https://www.mdpi.com/2073-4441/15/15/2771
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