摘要
本文对高大型空调建筑中常用的多股平行非等温射流进行了数值研究。采用κ-ε湍流模型,以速度及压力为参变量,用SIMPLE法求解偏微分方程组,从而获得了速度、压力、温度场及湍流能量、湍流能量耗散率分布,并进行了实验验证。本文还利用数值计算得到的丰富信息,对多股平行非等温射流流动规律及温度分布作了进一步研究,并回归出相应的计算公式,弥补了实验研究的不足。
In this paper a three-dimensional turbulent K- e model, P-V dependent variables, finite difference and SIMPLE method are introduced. By means of which we have made numerical solutions and characteristic analysis of flow motion and temperature distribution of parallel limited jets of cold air in large space buildings.A comparison between the calculation results and experiment research results shows that they are basically consistent, which proves that the method used here and the disposition of the complex boundary are satisfactory and the results are correct.
出处
《空气动力学学报》
CSCD
北大核心
1992年第3期390-395,共6页
Acta Aerodynamica Sinica
基金
国家自然科学基金
关键词
射流
湍流模型
数值计算
二元回归
jets, K-ε model, numerical research, two-component regression.
