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在对现有通风空调系统常用气流组织形式对比分析的基础上,提出了一种竖直壁面贴附式送风模式。通过全尺寸可视化实验和CFD数值模拟相结合的方式,研究了热送风模式下不同送风速度、温度和风口位置时房间内的流场和温度场分布,并给出了贴附过程中射流轴线速度衰减的表达式。研究表明,竖直壁面贴附式送风是一种通风效率较高、工作区人员热舒适性较好的气流组织形式。
Based on the comparison and analysis of the commonly used airflow patterns of the existing ventilation and air conditioning system, a vertical wall-attached ventilation mode is proposed. Through the combination of full-scale visualization experiment and CFD numerical simulation, the distribution of flow field and temperature field in the room with different blowing velocity, temperature and tuyere position under hot blast mode was studied. Axis speed attenuation of the expression. The research shows that the vertical wall attached air supply is a kind of air flow organization with higher ventilation efficiency and better thermal comfort in work area.