Development of a Wind–Wave Coherence Function Based on Numerical Studies

Author:

Wei Chengxun1,Li Shenghui1,Mao Haiying12

Affiliation:

1. School of Civil Engineering and Architecture, Guangxi University of Science and Technology, Liuzhou 545006, China

2. Key Laboratory of Disaster Prevention & Mitigation and Prestress Technology of Guangxi Colleges and Universities, Liuzhou 545006, China

Abstract

The synchronization and intensity of fluctuating wind speeds and wave surfaces in wind–wave joint propagation processes are affected by the coherence of the marine ambient factors of fluctuating wind and random waves. This coherence further affects the precise calculations of wind–wave joint actions on marine structures. Therefore, a wind–wave joint propagation numerical flume was established based on the numerical simulation of random waves and fluctuating wind fields. A series of numerical simulations of wind–wave joint propagations were carried out. Based on the numerical results, the influences and influence laws of factors such as wind speed position height, significant wave height and wave spectrum peak frequency on the wind–wave coherence values were studied. According to the influence characteristics of these factors, a function of wind–wave coherence values for random wind–wave joint propagation was calculated. The coherence function takes frequency as the variable, while parameters include significant wave height, wind speed position height and wave spectrum peak frequency. Through a series of numerical simulation results, data fitting was used to calculate the parameter coefficients of the coherence function. The established random wind–wave coherence function can be described using the wind–wave joint fields of marine structures and the computational analyses of structural wind–wave joint actions.

Funder

Guangxi Science and Technology Base and Talent Special Project

Shandong Provincial Natural Science Foundation, China

Key Laboratory of Disaster Prevention & Mitigation and Prestress Technology of Guangxi Colleges and Universities

Publisher

MDPI AG

Reference22 articles.

1. Analysis of wind wave relationship in the South China Sea from HY-2 satellite observations;Zhang;J. Appl. Oceanogr.,2017

2. Wind-generated water waves in a wind tunnel: Free surface statistics, wind friction and mean air flow properties;Longo;Coast. Eng.,2012

3. Turbulent flow structure in experimental laboratory wind-generated gravity waves;Longo;Coast. Eng.,2012

4. Examination of wind-wave interaction source term in WAVEWATCH III with tropical cyclone wind forcing;Zhao;Acta Oceanol. Sin.,2011

5. Analytically derived wind wave growth relations;Guan;China Ocean. Eng.,2002

同舟云学术

1.学者识别学者识别

2.学术分析学术分析

3.人才评估人才评估

"同舟云学术"是以全球学者为主线,采集、加工和组织学术论文而形成的新型学术文献查询和分析系统,可以对全球学者进行文献检索和人才价值评估。用户可以通过关注某些学科领域的顶尖人物而持续追踪该领域的学科进展和研究前沿。经过近期的数据扩容,当前同舟云学术共收录了国内外主流学术期刊6万余种,收集的期刊论文及会议论文总量共计约1.5亿篇,并以每天添加12000余篇中外论文的速度递增。我们也可以为用户提供个性化、定制化的学者数据。欢迎来电咨询!咨询电话:010-8811{复制后删除}0370

www.globalauthorid.com

TOP

Copyright © 2019-2024 北京同舟云网络信息技术有限公司
京公网安备11010802033243号  京ICP备18003416号-3