摘要
为获得较好的流态,泵站前池中常设有整流底坎、导流墩、隔墩,泵站前池内的水流泥沙运动是一种复杂的三维运动。用标准稳态k-ε双方程二阶紊流封闭模型模拟泵站前池三维流场,在全面分析紊流场中泥沙颗粒受力的基础上,建立模拟泥沙颗粒运动的随机游动模型,并用蒙特卡罗直接模拟方法,计算泵站前池的泥沙淤积。实例计算表明,方法能够得到较为合理的泥沙淤积分布形态,且计算直观、简便、灵活。
Adopting the standard k-ε two equations model and considering all the forces acted on the solid particle, the turbulent flow field and particle movement trajectory in the forebay of pumping station are numerically solved by SIMPLE procedure and Monte Carlo method respectively in this paper. The results of the distribution of sediments are reasonable. Monte Carlo Method is a good approach for three-dimensional numerical computation of the sediments in pumping station forebay.
出处
《灌溉排水学报》
CSCD
北大核心
2004年第4期40-43,共4页
Journal of Irrigation and Drainage
基金
国家自然科学基金资助项目(50279044)
关键词
蒙特卡罗方法
计算
泵站前池
泥沙淤积
pumping station forebay
sediments
three-dimensional movement
Monte Carlo method
