IMECH-IR  > 力学所知识产出(1956-2008)
后台阶下游床面冲刷过程数值模拟研究
Alternative TitleNumerical Investigation on the local scour at the downstream of the backward-facing step flow
刘春嵘; 呼和敖德
Source Publication海洋工程
2008-02-15
Volume26Issue:1Pages:51-56
ISSN1005-9865
Abstract以床面瞬时剪应力作为泥沙起动及输运的水动力机制,建立了结构物周围复杂流场下床面局部冲刷的数学模型。并应用大涡模拟方法对后台阶下游三维湍流流动进行数值模拟,得到台阶下游床面瞬时剪应力的分布规律。为了确定床面瞬时剪应力与泥沙上扬通量的关系,先应用数学模型对不同模型参数下,冲刷开始后5分钟时台阶下游床面形状进行试算。通过试算与实验结果的比较,确定床面瞬时剪应力与泥沙上扬通量关系中需要的模型参数。进一步对冲刷开始后30分钟内台阶下游床面演化规律进行模拟,模拟结果与实验结果相符合。
Keyword局部冲刷 泥沙起动 后台阶流 大涡模拟 瞬时剪应力
Indexed ByCSCD
Language中文
CSCD IDCSCD:3218730
Citation statistics
Document Type期刊论文
Identifierhttp://dspace.imech.ac.cn/handle/311007/40568
Collection力学所知识产出(1956-2008)
Corresponding Author刘春嵘
Recommended Citation
GB/T 7714
刘春嵘,呼和敖德. 后台阶下游床面冲刷过程数值模拟研究[J]. 海洋工程,2008,26,1,:51-56.
APA 刘春嵘,&呼和敖德.(2008).后台阶下游床面冲刷过程数值模拟研究.海洋工程,26(1),51-56.
MLA 刘春嵘,et al."后台阶下游床面冲刷过程数值模拟研究".海洋工程 26.1(2008):51-56.
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