| 二维温度分层流的数值模拟 |
| |
| 引用本文： | 江春波,马强,付清潭.二维温度分层流的数值模拟[J].水力发电,2003,29(2):24-26. |
| |
| 作者姓名： | 江春波 马强 付清潭 |
| |
| 作者单位： | 1. 清华大学,北京,100084
2. 长江水利委员会综合管理中心,湖北,武汉,430010 |
| |
| 基金项目： | 国家自然科学基金项目 (5 99790 13) |
| |
| 摘 要： | 以N-S方程为基础，考虑水流温度分层的特点，采用了二维温度分层流的大涡数值计算模型，根据Smagor-insky-Deardorff大涡模型方法对运动粘性系数和运动扩散系数进行模拟，通过对港口取水系统进行模拟，得到了水温与流速分布，正确地模拟了温度分层现象，同时比较了不同工程措施对降低取水温度的效果。
|
| 关 键 词： | Smagorinsky－Deardorff大涡模型 温度分层流 N－S方程 数值模拟 |
| 文章编号： | 0559-9342(2003)02-0024-03 |
| 修稿时间： | 2003年1月13日 |
Numerical simulation of two-dimensional temperature stratified flow |
| |
| JIANG Chun bo ,MA Qiang ,FU Qing tan.Numerical simulation of two-dimensional temperature stratified flow[J].Water Power,2003,29(2):24-26. |
| |
| Authors: | JIANG Chun bo MA Qiang FU Qing tan |
| |
| Affiliation: | 1 Tsinghua University;2 Prospecting and Design Institute of the Yangtze River Water Resources Commission |
| |
| Abstract: | Based on the N S equations, the large eddy model of two dimension temperature stratified flow is adopted in consideration of the characteristics of temperature stratified flow. The kinematical viscosity coefficient and kinematical diffusion coefficient were simulated according to the Smagorinsky Deardorff LES model method. Through the simulation of the port water extracting system, it is shown that the computational results meet with the distribution laws of the temperature and velocity of water flow and at the same time the effects of different engineering measures on reducing the water extracting temperature are compared. |
| |
| Keywords: | Smagorinsky Deardorff LES model N S equations temperature stratified flow numerical simulation |
| 本文献已被 CNKI 维普 万方数据 等数据库收录！ |
