Characteristics of Parameters for Local Scour Depth around Submarine Pipelines in Waves
Characteristics of Parameters for Local Scour Depth around Submarine Pipelines in Waves
复制标题
DOI：
10.1080/1064119x.2011.554967
复制
发表时间：
2011-04
影响因子：
2.2
通讯作者：
Sungduk Kim;Ho-Jin Lee;Junhyoung Yeon
中科院分区：
文献类型：
--
作者：
Sungduk Kim;Ho-Jin Lee;Junhyoung Yeon
摘要本研究旨在探讨波浪作用下海底管道局部冲刷深度之参数特性。由于不可能考虑所有影响冲刷的因素，因此研究参数与冲刷之间的相关性是合理的。分别进行了40、60、90 m管径、不同波浪周期、不同波高条件下水平床和1/10坡度床的冲刷试验。通过对实验结果的分析，估算了雷诺数、Shields参数、Keulegan-Carpenter数、Ursell数和修正Ursell数。分析了相对冲刷深度（最大平衡局部冲刷深度除以管径）与5个参数之间的相关性。结果表明，几乎没有任何相关性与雷诺数。在水平床的情况下，Keulegan-Carnival数具有最高的相关性，但在斜坡床的情况下，相关性大大降低。无论床的类型如何，修改后的Ursell数都显示出较高的相关性。
The purpose of this study is to investigate the characteristics of parameters for local scour depth around submarine pipes due to waves. Because it is impossible to consider all the factors that influence the scour, it is reasonable to investigate the correlations between parameters and scour. The experimental works about scour were performed for the conditions of 40, 60, 90 m pipe diameter, various wave periods, and wave height in the case of horizontal bed and 1/10 slope bed, respectively. Analyzing the results of experiments, the Reynolds number, Shields parameter, Keulegan-Carpenter number, Ursell number, and Modified Ursell number were estimated. The correlations between the relative scour depth, which is the maximum equilibrium local scour depth divided by the pipe diameter, and 5 parameters were analyzed. It was shown that there was hardly any correlation with the Reynolds number. In the case of a horizontal bed, the Keulegan-Carpent number had the highest correlation, but in the case of the slope bed the correlation was greatly reduced. The modified Ursell number showed a high correlation regardless of the type of bed.