摘要
通过建立一个垂直二维紊流模型来模拟管道周围流场,建立泥沙冲刷模型来模拟海床底面变化。其中,冲刷模型同时包括悬移质输沙和推移质输沙。海床底面变化通过计算底面泥沙总输运平衡关系得到。并进行多组冲刷数值实验,分析泥沙冲刷过程,总结出一套冲刷平衡深度经验公式。
A vertical two-dimensional flow model is developed to model the current around pipeline. A scour model is developed to model the change of bed level. Both suspended load and bed load are considered in the model. The change of bed level is calculated from the continuity equation of total sediment transport. Groups of scour experiment were took and the process of scour was analyzed. Finally, a empirical formula about scour deep was concluded.
出处
《海洋技术》
北大核心
2010年第1期51-55,共5页
Ocean Technology
关键词
数值模拟
管道
泥沙输运
冲刷深度
numerical model
pileline
sediment transport
scour deep
