摘要
为了对溢流堰的流场进行数值模拟,从完整的N-S方程出发,采用k-ε两方程湍流模型封闭R eyno lds方程,作为基本控制方程,对自由表面的追踪采用了VOF(vo lum e of flu id)方法。数值计算中,对基本控制方程采用了基于交错网格的SIM PLE算法,对自由表面控制方程采用了施主—受主方法。计算了溢流堰上的流速和压力分布,并与已有的试验结果作了比较。结果表明,计算方法能够比较准确地模拟溢流堰的流场。
A numerical technique for simulating water flow over a weir based on the viscous theory was presented. The numerical model involved the two-equation k-ε turbulent model and Reynolds equation. In order to track the free surface, the volume of fluid （VOF） method was employed. The SIMPLE method was used to solve the control model, and the donor-acceptor method to solve the free surface model. The free surface profile and the velocity filed, streamline, pressure on the weir were obtained and the computational results showed general agreement with the existing data.
出处
《解放军理工大学学报（自然科学版）》
EI
2006年第2期161-165,共5页
Journal of PLA University of Science and Technology(Natural Science Edition)
基金
国家自然科学基金资助项目(50578157)
