【摘要】 建筑空调为人们提供清洁舒适的室内环境。本文在Ｂｌａｙ等人实验研究基础之上 ,采用标准关键词模型和壁面函数法 ,对具有混合对流作用的小室流场和温度场进行数值模拟 ,经与实验值对比发现 ,标准κ-ε模型可以较为准确模拟混合对流作用的流动与传热问题 ,速度值的最大偏差为 0 . 0 43ｍ ｓ,温度最大偏差值为 1 . 1Ｋ ;浮升力对ε方程中源项的影响可以不计更多还原

【Abstract】 A comfortable and healthy indoor environment should be provided by the air-condition in a good building. On the basis of the experimental work finished by Blay et al., the standard model and wall-function are used to simulate the mixed convection flow in a two-dimensional cavity, and the numerical results of flow and temperature field match with the measured data well. The maximum error between the numerical and the experimental data is about (0.043m/s) in velocity and 1.17K in temperature. In addition, the buoyancy can be neglected for source term of equation.更多还原