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48 / 2021-10-11 18:56:11
Numerical simulation on the local scour processing and influencing factors of submarine pipeline
Submarine Pipeline,pipeline scour,Numerical simulation
8.Risers and pipelines
Abstract Pending
胡轲 / 浙江海洋大学
白兴兰 / 浙江海洋大学
To investigate different influencing characteristics of local scour around submarine pipeline, hydrodynamic and sediment transport modules based on Flow-3D are used to numerically simulate the local scour around the pipeline. RNG k-ε turbulence model is used to simulate the turbulent flow field around the pipeline. The instantaneous shear stress of the bed surface is taken as the starting and transporting condition of sediment. The simulation results of the equilibrium scour depth and terrain around the pipeline are verified with the previous experimental results which shows good agreement. Then, the numerical simulation method is applied to investigate local scour process around pipeline during the scour process of pipelines. The results show that the local scour processes are included clearance scour, wake scour and equilibrium scour. The velocity, sediment grain size, pipeline diameter, initial gap between pipeline and seabed and the pipelines distance affects submarine pipeline equilibrium scour depth and terrain in varying degrees.

 
Important Date

  • Conference Date

    Oct 22

    2021

    to

    Oct 25

    2021

  • Sep 15 2021

    Early Bird Registration

  • Oct 25 2021

    Registration deadline

Sponsored By
SUT 中国分会
大连理工大学
中国石油大学（北京）
Supported By
辽宁省力学学会
大连市科学技术协会
工业装备结构分析国家重点实验室
海岸和近海工程国家重点实验室
橡塑制品成型数值模拟与优化学科创新引智基地
大连理工大学宁波研究院
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