严寒地区热风供暖室内气流组织模拟

Airflow Organization Simulation of Warm Air Heating in Severely Cold Area

冬季室内的气流组织往往是人们非常关心的.本文应用Airpak软件对具有典型上送下回气流组织形式的室内空间进行了数值计算模拟,并对孔板隔栅送风口进行了射流轴心速度衰减的定义,使其在动量流量与质量流量上与实际模型一致,最终得到了与实测值比较接近的理论值.基于这一结论,Airpak可以对室内的气流组织进行一定的预测,并为优化设计提供参考.

In winter people tend to care about the indoor airflow organization very much. In the paper, the airflow organization of indoor space with typical up - supply and down - return form is simulated in the pattern of numerical？ computation. And the grille diffuser is defined with the theory of the jet centerline velocity attenuation. Thus the def- inition will ensure that the grill diffuser is consistent with the real model in the flow of momentum and mass. At last, the simulation provide theoretical value nearly close to the actual measurement value. Based on this, Airpak can give some prediction to the indoor airflow organization and reference to the optimization design.