双热源热压自然通风流场数值模拟研究

Numerical Simulation Study on Flow Field of Thermal Natural Ventilation with Double Heating Sources

本文首先对具有双热源的民用建筑采用CFD技术,在室内余热量不变的条件下,改变双热源间距对热压自然通风流场进行了数值模拟。而后分析了单、双热源所形成的速度场与温度场之间的差别,以及双热源间距对室内流场、温度场及各特征参数的影响,为民用建筑自然通风系统的设计提供了参考。

In this paper, for civil buildings with double heating sources and invariable indoor remaining heat, flow field of thermal natural ventilation was simulated under the conditions of different distances between two sources with the technique of CFD. The distinctions of temperature and velocity fields between single and double heating sources were analyzed, also influences of the distance on temperature and velocity fields, and their corresponding characteristic parameters were presented. As a result, it could be considered as a reference for the design of natural ventilation system in civil buildings.