建筑围护结构的温度场数值模拟

Temperature field simulation of building envelopes

本文综合分析了影响建筑围护结构温度场的各种因素:太阳辐射、空气对流以及天空辐射、地表环境辐射、自身辐射等,采用有限元数值模拟方法,结合某混凝土小型空心砌块建筑温度场实测资料,对屋面和墙体进行了典型日变化温度场的数值模拟,与实测结果吻合较好;同时与室外综合温度法的计算结果进行对比,证明综合考虑多种影响因素进行温度场计算更加合理。

Some factors influencing building temperature field had been synthetically analyzed including the ambient temperature, solar radiation,air convection and long wave radiation. With the aid of the finite element method for numerical simulation, the temperature variation with time was calculated for the slope roofs and walls of the tested concrete small hollow block building. And the results from calculation fit well with the experimental ones. Compared with the results that only consider solar radiation on building, it can be concluded that the method described in the paper is more rational.