摘要
本文采用有限体积法和标准k-ε模型,对不同间距比、管径比的海底子母管线绕流特性进行了数值研究。通过对比数值模拟结果与其他学者的物理模型试验数据,发现二者吻合良好;利用验证过的数学模型,对不同管径比、不同间距比下母管迎流面前驻点、管道表面压力、升阻力系数和母管下方底床动水压力进行了数值分析,其结果可为进一步研究海底子母管线的冲刷响应提供水动力基础依据。
In this paper, the finite volume method and the standard k-ε model are used to numerically study the flow characteristics of submarine piggyback pipelines with different spacing ratios and pipe diameter ratios. By comparing the numerical simulation results with the physical model test data of other scholars, it is found that the two are in good agreement. The numerical analysis of the stagnation point of the piping-main, the surface pressure of the pipe, the coefficient of lift and resistance and the hydrodynamic pressure of the bottom bed under the piping-main are carried out for different pipe diameter ratios and different spacing ratios using the verified mathematical model. The results can provide a hydrodynamic basis for further study of the erosion response of the submarine pipeline.
作者
阚宝成
拾兵
KAN Baocheng;SHI Bing(College of Engineering,Ocean University of China,Qingdao266100,China)
出处
《海洋湖沼通报》
CSCD
北大核心
2020年第2期19-27,共9页
Transactions of Oceanology and Limnology
关键词
海底子母管
绕流驻点
动水压力
升、阻力系数
数值模拟
submarine piggyback pipelines
stagnation point
hydrodynamic pressure
lift and drag coefficient
numerical simulation
