Prediction of scour depth around offshore pipelines in the South China Sea
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- 作者：Yonggang Cao (1) (2)
Yuchuan Bai (1)
Junqin Wang (3)
Shizhi Liao (2)
Dong Xu (1) - 关键词：pipeline ; offshore pipelines ; sediment ; scour depth ; numerical simulation ; theoretical calculation ; South China Sea
- 刊名：Journal of Marine Science and Application
- 出版年：2015
- 出版时间：March 2015
- 年：2015
- 卷：14
- 期：1
- 页码：83-92
- 全文大小：565 KB
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Yuchuan Bai (1)
Junqin Wang (3)
Shizhi Liao (2)
Dong Xu (1)
1. State Key Laboratory of Hydraulic Engineering Simulation and Safety, Tianjin University, Tianjin, 300072, China
2. South China Sea Marine Engineering Surveying Center, State Oceanic Administration, Guangzhou, 510300, China
3. China National Offshore Oil Corporation General Research Institute, Beijing, 100027, China - 刊物类别：Engineering
- 刊物主题：Offshore Engineering
Machinery and Machine Elements
Electrical Power Generation and Transmission
Chinese Library of Science - 出版者：Harbin Engineering University
- ISSN：1993-5048
文摘
Scour depth prediction of offshore pipelines is of great significance to the design and construction of the submarine pipeline projects. In this paper, based on the CFD software package FLUENT and User Defined Function (UDF), an Eulerian two-phase model, which includes an Euler-Euler coupled model for water and sediment phases, and a turbulent model for the fluid phase, is adopted to predict the scour depth around pipelines. The model is verified by observation data obtained from laboratory experiments. On the basis of the simulations, the factors affecting the scour depth, including the effects of incipient velocity, pipe diameter and sediment particle size and so on, were investigated. Meanwhile, according to formulas of incipient velocity of various sediments, approximate calculation on theoretical scour depths is developed for pipelines of seven stations in the South China Sea, where engineering application information is available.