| 复式断面明渠平面准二维流场的数值模拟 |
| |
| 引用本文： | 王新宏,杨方社,张强. 复式断面明渠平面准二维流场的数值模拟[J]. 西安理工大学学报, 2002, 18(4): 351-355 |
| |
| 作者姓名： | 王新宏 杨方社 张强 |
| |
| 作者单位： | 西安理工大学,水利水电学院,陕西,西安,710048 |
| |
| 摘 要： | 通过简化宽浅明渠二维水流运动方程，得到垂线平均流速在横在横向变化的微分方程式。以此为基础，建立了一个模拟复合断面明渠平面流场的准二维水流计算模型，通过实例对模型进行了验证和对比，并分析了横向无量钢紊乱流粘性系数的取值对计算结果的影响，结果表明，该方法的计算精度明显优于传统方法。
|
| 关 键 词： | 复式断面明渠 数值模拟 平面流场 数学模型 垂线平均流速 |
| 文章编号： | 1006-4710(2002)04-0351-05 |
| 修稿时间： | 2001-11-30 |
Numerical Simulation of Quasi-2D Flow Field in Compound Open Channel |
| |
| WANG Xin hong,YANG Fang she,ZHANG Qiang. Numerical Simulation of Quasi-2D Flow Field in Compound Open Channel[J]. Journal of Xi'an University of Technology, 2002, 18(4): 351-355 |
| |
| Authors: | WANG Xin hong YANG Fang she ZHANG Qiang |
| |
| Abstract: | In this paper, a differential equation of describing the lateral distribution of depth averaged velocity is obtained by simplifying 2D shallow water equations of open channel flow. Based on the simplified equation, a numerical model of quasi 2D flow field in compound open channel is established. The model is tested and contrasted with the actural examples,and the influence of the dimensionless eddy viscosity on the lateral distribution of velocity is analyzed.The results indicate that the calculation accuracy of this method is obviously superior to the truditional method. |
| |
| Keywords: | depth averaged flow field numerical model depth averaged velocity |
| 本文献已被 CNKI 维普 万方数据 等数据库收录！ |
