流波角对圆桩周围局部冲刷的影响

IF 1.4 3区工程技术 Q3 ENGINEERING, CIVIL

Journal of Waterway Port Coastal and Ocean Engineering Pub Date : 2022-01-01 DOI:10.1061/(asce)ww.1943-5460.0000692

Oscar de la Torre, M. Hann, Jon Miles, S. Stripling, D. Greaves

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引用次数: 1

摘要

本文研究了波浪前流角对圆桩冲刷的影响。在普利茅斯大学(英国)的海岸、海洋和沉积物运输(COAST)实验室进行了一项实验研究，使用了一个直径0.125米的单桩和一个8米长、1.5米宽、0.2米高的沙坑。试验结果显示了波浪与水流夹角对最大冲刷深度和冲刷过程时间尺度的影响。波浪锋面部分与洋流对齐(65°)比垂直强迫条件(90°)产生更深的冲刷孔。波浪锋面部分逆流(115°)产生的冲刷比前两种情况都要少。与只有水流的情况相比，波浪的加入减小了最大冲刷深度。当波浪加入到水流中时，发现冲刷孔的发展更加迅速，在一半的时间内完成了50%的最终冲刷。结果表明，相对于水流的波浪方向是冲刷预测的重要组成部分。DOI: 10.1061 /(第3期)ww.1943 - 5460.0000692。©2021美国土木工程师学会。关键词:冲刷;Monopile;泥沙输移波流相互作用。

本文章由计算机程序翻译，如有差异，请以英文原文为准。

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Effect of the Current-Wave Angle on the Local Scour Around Circular Piles

This paper studies the effect of the wave front-current angle on the scour around a circular pile. An experimental study was carried out in the Coastal, Ocean and Sediment Transport (COAST) laboratory at the University of Plymouth (UK) using a single monopile of 0.125 m in diameter and an 8 m long by 1.5 m wide by 0.2 m high sand pit. The results obtained during the test campaign show the influence of the angle between waves and currents on both the maximum scour depth and the time scale of the process. Wave fronts partially aligned with current (65°) produce deeper scour holes than perpendicular forcing conditions (90°). Wave fronts partially against the current (115°) produce less scour than any of the two previous scenarios. The addition of waves reduced the maximum scour depth, compared with the current-only case. The development of the scour hole was found to be more rapid when waves are added to the current, with 50% of the final scour achieved in half the time. The results show that wave direction relative to the current is an important component in scour prediction. DOI: 10.1061/(ASCE)WW.1943-5460.0000692. © 2021 American Society of Civil Engineers. Author keywords: Scour; Monopile; Sediment transport; Wave-current interaction.

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来源期刊

Journal of Waterway Port Coastal and Ocean Engineering 工程技术-工程：大洋

CiteScore

4.40

自引率

4.50%

发文量

审稿时长

9 months

期刊介绍： The Journal of Waterway, Port, Coastal, and Ocean Engineering disseminates to the profession engineering and scientific advances made in the COPRI disciplines. The journal is a strong forum for civil engineering disciplines related to ocean, coastal and riverine waters as well as the interaction of these waters and the adjacent built and natural environments. This broad scope makes the Journal an ideal choice for the publication and dissemination of archival contributions dealing with important related topics. Topics include dredging, floods, sediment transport, tides, wind waves and storm surge, tsunamis, climate change, rising sea level, extreme weather events and other hazards that affect shorelines, waterways, estuaries, and ports and harbors, as well as efforts to mitigate the impact of such hazards. Of equal interest is the development and operation of offshore facilities and ocean resource utilization, such as renewable energy and ocean mining. Types of publications include original journal articles, comprehensive review articles, short technical notes, case studies of special interest to the readership, book reviews, and special issues on selected topics.