具有凸出热源的空调室内的复杂对流换热研究

Complex convective heat transfer in an air-conditioning room with protruded heat source

以空调房间为背景,建立了一侧竖壁有一个发热器、下壁面有两个凸出热源的二维空腔内对流换热的数学模型,并采用了数值计算的方法对不同的加热器温度、送回风方式、进风口空气的参数以及热源强度分别进行了模拟。最后根据计算结果,着重讨论了参数的改变对房间内温度场和流场分布的影响,并比较了不同空调方式条件下房间内的温度和气流分布。该研究对实际的工程应用有一定的指导作用。

With the background of the air-conditioning room, a mathematic model on mixed convection is proposed in a two-dimensional cavity with a heater at one vertical wall and two protruded sources at one horizontal wall. The numerical simulations are carried out for different heater temperatures, different air-conditioning ways and different heat source intensities. To be further, according to concerned analysis based on the calculated result, the effects on the velocity and temperature fields of cavity are emphatically discussed, and distribution of temperature and airflow are analyzed for different air-conditioning ways. The research provides an instruction to engineering application.