[1]张芝永,刘光生,曾剑.波浪作用下海底管线局部冲刷临界条件[J].哈尔滨工程大学学报,2015,(11):1433-1437.[doi:10.11990/jheu.201406010]
 ZHANG Zhiyong,LIU Guangsheng,ZENG Jian.Critical conditions of local scour below submarine pipelines under wave action[J].hebgcdxxb,2015,(11):1433-1437.[doi:10.11990/jheu.201406010]
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波浪作用下海底管线局部冲刷临界条件(/HTML)
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《哈尔滨工程大学学报》[ISSN:1006-6977/CN:61-1281/TN]

卷:
期数:
2015年11期
页码:
1433-1437
栏目:
出版日期:
2015-11-25

文章信息/Info

Title:
Critical conditions of local scour below submarine pipelines under wave action
作者:
张芝永12 刘光生1 曾剑1
1. 浙江省水利河口研究院浙江省河口海岸重点实验室, 浙江杭州 310020;
2. 浙江大学建筑工程学院, 浙江杭州 310058
Author(s):
ZHANG Zhiyong12 LIU Guangsheng1 ZENG Jian1
1. Key Laboratory of Estuary and Coast of Zhejiang Province, Zhejiang Institute of Hydraulics and Estuary, Hangzhou 310020, China;
2. College of Civil Engineering and Architecture, Zhejiang University, Hangzhou 310058, China
关键词:
海底管线多孔介质冲刷临界条件边界造波法VOF方法
分类号:
P751
DOI:
10.11990/jheu.201406010
文献标志码:
A
摘要:
为保护海底管线避免冲刷,对海底管线局部冲刷的临界条件进行研究是十分有必要的。基于海床多孔介质假设,通过添加源项方法来实现海床泥沙颗粒对水流的阻滞作用,建立了海底管线周围水动力场-渗流场耦合数值模型。利用前人数值试验结果对该数值模型进行了验证,在此基础上基于边界造波法和VOF方法对波浪作用下海底管线周围水动力场-渗流场进行了联合数值求解。分析了波浪KC数、相对埋深e/D对管线两端压差的影响,研究了管涌出口处水力梯度的变化规律。研究发现管线两端压差和渗流水力梯度随着KC和相对埋深e/D的增大而减小。管线冲刷的临界无量纲流速随着KC和相对埋深的增大而增大,并通过曲线拟合建立了一个用于计算管线冲刷无量纲流速的经验公式,为实际工程中海底管线的防护提供了重要的技术支持。

参考文献/References:

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备注/Memo

备注/Memo:
收稿日期:2014-06-06;改回日期:。
基金项目:国家自然科学基金资助项目(41376099);浙江省科技厅条件建设资助项目(2013F10031,2014F10036);浙江省博士后科研择优资助项目(BSH1502052);水利部公益性行业科研专项基金资助项目(201401010).
作者简介:张芝永(1984-),男,工程师,博士;曾剑(1974-),男,教授级高级工程师,博士.
通讯作者:张芝永, E-mail:zhangzy@zjwater.gov.cn.
更新日期/Last Update: 2015-11-30