...
  • 主题
高级搜索  >
历史搜索 清空历史
首页> 外文期刊>Ocean Engineering >Estimation of the transmission coefficients of wave height and period after smooth submerged breakwater using a. non-hydrostatic wave model
【24h】

Estimation of the transmission coefficients of wave height and period after smooth submerged breakwater using a. non-hydrostatic wave model

机译：用a估计光滑淹没式防波堤后的波高和周期的传输系数。非静水波模型

获取原文
获取原文并翻译 | 示例
           
页面导航
  • 摘要
  • 著录项
  • 相似文献
  • 相关主题

摘要

In the present study, new empirical formulas of wave transmission coefficients, including K-p for the mean wave period and K-t for the significant wave height, defined as the ratios between the transmitted and incident values of a smooth submerged breakwater, are proposed based on results simulated using the SWASH non-hydrostatic wave model. According to the analysis of the numerical results, both K-t and K-p are less than 1.0, and the transmitted peak period is close to the incident peak period in most cases. The reduction of wave height is mainly caused by energy loss due to wave breaking, and the reduction of the mean period is mainly caused by the generation of high-frequency harmonics after the submerged breakwater. Moreover, both K-t and K-p have good linear correlations with the relative submergences, and K-p has a good linear relationship with wave steepness. The relative crest width and slope have no significant effect on the transmission coefficient of the submerged breakwater compared with the effects of the relative submergences and wave steepness. Based on the factors mentioned above, new empirical formulas are formed. The coefficients of determination (R-Cor(2)) of K-t and K-p between measurements and values calculated using the new empirical formulas are 0.90 and 0.95, respectively, representing an improvement over the models of Van der Meer et al. (2003) and Carevic et al. (2013). The sensitivities of K-t and K-p to the variables in the empirical formulas are also investigated. According to the sensitivity analysis, a simplified formula of K-t is suggested based on the relative submergence and breaker parameter, and a simplified formula of K-p is proposed based on the relative submergence and wave steepness. (C) 2016 Elsevier Ltd. All rights reserved.
机译：在本研究中，基于模拟结果，提出了新的波传播系数经验公式，包括平均波周期的Kp和重要波高的Kt，这些系数被定义为光滑水下防波堤的透射值与入射值之比。使用SWASH非静水波模型。根据数值结果的分析，K-t和K-p均小于1.0，并且在大多数情况下，透射峰周期接近入射峰周期。波浪高度的下降主要是由于波浪破碎造成的能量损失，平均周期的下降主要是由于淹没防波堤后产生了高频谐波。此外，K-t和K-p与相对淹没都具有良好的线性相关性，而K-p与波陡度也具有良好的线性关系。与相对淹没和波浪陡度的影响相比，相对波峰的宽度和坡度对淹没防波堤的传输系数没有显着影响。基于上述因素，形成了新的经验公式。测量值和使用新的经验公式计算的值之间的K-t和K-p的确定系数（R-Cor（2））分别为0.90和0.95，代表对Van der Meer等人模型的改进。 （2003）和Carevic等。 （2013）。还研究了K-t和K-p对经验公式中变量的敏感性。根据灵敏度分析，提出了基于相对淹没度和破碎参数的简化公式K-t，并基于相对淹没度和波陡度提出了简化的K-p公式。 （C）2016 Elsevier Ltd.保留所有权利。

著录项

  • 来源
    《Ocean Engineering》 |2016年第1期|202-214|共13页
  • 作者

    Zhang Na; Zhang Qinghe; Zou Guoliang; Jiang Xuelian;

  • 作者单位

    Tianjin Chengjian Univ, Tianjin Key Lab Soft Soil Characterist & Engn Env, Tianjin 300384, Peoples R China|Tianjin Univ, State Key Lab Hydraul Engn Simulat & Safety, Tianjin 300072, Peoples R China;

    Tianjin Univ, State Key Lab Hydraul Engn Simulat & Safety, Tianjin 300072, Peoples R China;

    Nanjing Hydraul Res Inst, Nanjing 210024, Jiangsu, Peoples R China;

    Tianjin Chengjian Univ, Tianjin Key Lab Soft Soil Characterist & Engn Env, Tianjin 300384, Peoples R China;

  • 收录信息
  • 原文格式 PDF
  • 正文语种 eng
  • 中图分类
  • 关键词

    Smooth submerged breakwater; Non-hydrostatic wave model; Wave transmission coefficients; Mean wave period;

    机译：光滑淹没式防波堤;非静水波模型;波透射系数;平均波周期;

相似文献

  • 外文文献
  • 中文文献
  • 专利
获取原文

客服邮箱：kefu@zhangqiaokeyan.com

京公网安备：11010802029741号 ICP备案号：京ICP备15016152号-6 六维联合信息科技 (北京) 有限公司©版权所有

  • 客服微信

  • 服务号