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为了研究夏季自然通风时室内气流分布,对马鞍山市某办公室在自然通风及屋顶有、无辐射三种工况进行模拟,得到室内三种工况下不同水平高度处的速度场、温度场及压力场;结果表明,室内平均气流温度和平均速度均与高度呈正相关。另外,加入太阳辐射比不加太阳辐射的温度略高。通过对不同空间位置的速度场、温度场分析,为了改善室内工作人员的热舒适性和提高工作效率,在夏季采用自然通风时建议同时开启风扇,增加室内气流扰动。
In order to study the distribution of indoor air flow during natural ventilation in summer, three working conditions of natural ventilation and roof with and without roof were simulated in an office in Ma’anshan City. The velocity field, temperature field and pressure at different levels in three indoor conditions The results show that indoor average airflow temperature and average velocity are positively correlated with height. In addition, adding solar radiation is slightly higher than the temperature without solar radiation. Through the analysis of the velocity and temperature fields in different spatial locations, in order to improve the thermal comfort and work efficiency of indoor workers, it is suggested to turn on the fan at the same time during natural ventilation in summer to increase the indoor air flow disturbance.