Numerical investigation of local scour around a vibrating pipeline under steady currents
Numerical investigation of local scour around a vibrating pipeline under steady currents
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恒流条件下振动管道局部冲刷的数值研究
DOI：
10.1016/j.oceaneng.2020.108546
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发表时间：
2021-02
影响因子：
5
通讯作者：
Tang Jinbo
中科院分区：
文献类型：
--
作者：
Liu Mingming;Jin Xin;Wang Lu;Yang Fan;Tang Jinbo
建立了一个二维有限元数值模型，用于预测海底管道在恒定流中的局部冲刷。数值模型基于二维不可压Navier-Stokes方程，采用剪切应力输运（SST）k-ω湍流模型封闭。数值模拟中考虑了悬移质和推移质的输移。采用任意拉格朗日欧拉（ALE）方法跟踪管道振动引起的动边界和局部冲刷引起的海床演变。数值计算结果与实验数据的比较表明，两者吻合较好。对振动管道周围的局部冲刷进行了研究，包括管道下方的最大冲刷深度、旋涡脱落模式和管道的振动幅度。计算结果表明，管道的最大振动幅度可达1.2D左右，最大冲刷深度发生在振动管道的尾流侧。
A two-dimensional finite element numerical model was developed to predict local scour around a vibration submarine pipeline in steady current. The numerical model was based on incompressible two-dimensional Navier-Stokes equations with a Shear-Stress Transport (SST)k-ωturbulence model closure. The transportations of suspended load and the bed load were taken into consideration in the present numerical simulation. The moving boundaries induced by the vibration pipeline and the evolution of the seabed due to local scour were tracked by using the Arbitrary Lagrangian Eulerian (ALE) method. Comparisons between the numerical results and available experimental data showed satisfactory agreements. The local scour around a vibrating pipeline has been investigated, including the maximum scour depth below the pipeline, the vortex shedding mode and the vibration amplitude of the pipeline. The numerical results showed that the maximum vibration amplitude of the pipeline could be about 1.2D, and the maximum scour depth occurred in the wake side of the vibration pipeline.
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影响因子：
0.8
作者：
Fangjun Li;Liang Cheng
通讯作者：
Fangjun Li;Liang Cheng
DOI：
--
发表时间：
1997
期刊：
--
影响因子：
--
作者：
Trond Stokka Meting;J. Dalheim
通讯作者：
Trond Stokka Meting;J. Dalheim
边界剪切流对完全冲刷海底管道水动力的影响
影响因子：
5
作者：
Chen Linfeng;Wang Yitao;Sun Shiyan;Wang Shuqi
通讯作者：
Wang Shuqi
影响因子：
1.8
作者：
B. Kumar;S. Mittal
通讯作者：
B. Kumar;S. Mittal
影响因子：
4.4
作者：
Ming Zhao;Liang Cheng
通讯作者：
Ming Zhao;Liang Cheng