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摘要： 考虑了影响建筑热环境的6个建筑设计要素：窗墙面积比、窗类型（传热系数）、水平遮阳板尺寸、外墙传热系数、屋顶传热系数及房间尺寸（长∶高∶宽）。根据设定的室内热环境评价指标：室内温度平均值、PMV平均值、温度不均匀系数和速度不均匀系数，通过正交试验和CFD模拟，得到了自然通风建筑设计中，使建筑热环境相对最优化的6个建筑设计要素的最优搭配方案。 关键词： 建筑方案设计 热环境模拟 正交试验 CFD软件 Optimizing building scheme design based on building thermal environment simulation by CFD software By Zhang Weijie★, Jin Wen and Sheng Xiaokang Abstract Considers the six architectural factors affecting building thermal environment such as the area ratio of window-to-wall, type of the window (heat transfer coefficient), dimensions of the horizontal shade plate, heat transfer coefficient of the external wall, heat transfer coefficient of the roof and dimensions of the room(length∶height∶width). Taking mean indoor temperature, mean PMV, temperature non-uniform coefficient and velocity non-uniform coefficient as the evaluating indexes of indoor thermal environment, obtains the optimal combination of the six factors by CFD simulation and orthogonal experiment method for a better indoor thermal environment for natural ventilated buildings. Keywords building scheme design, thermal environment simulation, orthogonal experiment, CFD software ★ Hebei University of Engineering, Handan, Hebei Province, China