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【摘要】 对小空间碰撞射流通风房间,采用数值模拟方法对室内气流分布、吹风引起的不舒适性及室内通风效率进行分析,研究不同负荷下的室内空气品质。结果表明:小空间碰撞射流通风房间内,冷负荷在40W/m2到67W/m2的范围时室内空气品质较理想。 【Abstract】 Use computational fluid dynamics to study air flow distribution,percentage of dissatisfied and ventilation effectiveness in a small space with impinging jet ventilation system,so as to find out indoor air quality under different cooling load.The results show that we can retain good indoor air quality when cooling load ranging from 40 to 67 W/m2 in a small space with impinging jet ventilation. 【关键词】 碰撞射流通风(IJV); 吹风感引起的不舒适性(PD); 通风效率; 数值模拟 【Key words】 Impinging jet ventilation(IJV); Percentage of dissatisfied; Ventilation effectiveness; Computational fluid dynamics