Three-dimensional mathematical model of scour around Trawl Resistant Seabed Basement on sand bed was established using Flow-3D. By changing the flow velocity and sediment particle size, the scour on sand bed under different conditions was simulated, and the changes in the trend of maximum scour depth around Trawl Resistant Seabed Basement with the two factors was analyzed. The results show that the scour depth around Trawl Resistant Seabed Basement is increased with current velocity increases, under the other setting conditions unchanged, the scour pit deepened velocity with increasing flow velocity is gradually slowed down, and ultimately achieved sedimentation balance. At the same time, due to the complex and changeable seabed environment, the model and the actual situation are different, and therefore further research should be continued.
Key words
Trawl Resistant Seabed Basement /
sediment scour /
numerical simulation
{{custom_sec.title}}
{{custom_sec.title}}
{{custom_sec.content}}
References
[1] LIU Jie, WU Cheng-xuan, LÜ bin, et al. CFD based flow field analysis of a seabed monitoring platform[J]. Shandong Science,2012,25(1):65-68.
刘杰,吴承璇,吕斌,等.基于CFD的海床基观测平台外部流场分析[J].山东科学,2012,25(1):65-68.
[2] WANG Fu-jun. Principle and application of CFD software for computational fluid dynamics analysis[M].Beijing:Tsinghua University Press,2004.
王福军.计算流体动力学分析:CFD软件原理与应用[M].北京:清华大学出版社,2004.
[3] XU Jiong-xin, HU Chun-hong, CHEN Jian-guo. The influence of sediment of different size groups on the deposition of the lower reaches of the Yellow River and its significance in the management of the Yellow River[J]. Science in China: Series E,2009,39(2):310-317.
许炯心,胡春宏,陈建国.不同粒径组泥沙对黄河下游沉积的影响及其在黄河治理中的意义[J].中国科学:E辑,2009,39(2):310-317.
[4] ZHAO Yan-fei.Three-dimensional numerical simulation of wave force on the offshore wind turbine structure and scour around foundation[D]. Tianjing:Tianjin University,2010.
赵雁飞.海上风电支撑结构波浪力及基础冲刷的三维数值模拟研究[D].天津:天津大学,2010.
[5] YUAN Yao-chu, ZHAO Jin-ping, WANG Hui-qun, et al. Observations of 450 m currents in the shallow and deep layers of the northeastern South China Sea and their spectral analysis[J]. Science in China: Series D,2002,32(2):163-176.
袁耀初,赵进平,王惠群,等.南海东北部450 m以浅水层与深水层海流观测结果及其谱分析[J].中国科学:D辑,2002,32(2):163-176.
PDF(2328 KB)
