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单、双热源置换通风系统流场及温度场的数值模拟【英文篇名】 Numerical simulation on velocity and temperature distribution of displacement ventilation systems with one or two heat sources 【作者中文名】 吴晅; 武文斐; 【作者英文名】 By Wu Xuan ★ and Wu Wenfei★Inner Mongolia University of Science Baotou; Inner Mongolia Autonomous Region; China; 【作者单位】 内蒙古科技大学; 【文献出处】 暖通空调, Hv 气流分布; 垂直温度分布; 数值模拟; 【英文关键词】 displacement ventilation; velocity distribution; vertical temperature distribution; numerical simulation; 【摘要】 利用计算流体力学 (CFD)方法 ,分别对单、双热源置换通风系统进行了数值模拟。分析和比较了两种情况下室内空气的速度和温度分布 ,指出室内温度场在垂直方向上存在三个温升层 ;单、双热源形成的垂直温度分布有较大差别 ;双热源送风参数的计算不能简单按单热源的计算参数进行 ,应考虑热源分散的影响 【英文摘要】 Simulates the displacement ventilation system with one or two heat sources using the method of computational fluid dynamics (CFD). Analyses and compares the velocity and temperature distribution of indoor air about the two cases. Points out that there are three temperature rising layers in vertical, the vertical temperature distribution is different in the two cases, and the calculation of supply air parameters in two heat sources system can’t follow the calculating parameters of single heat source system f...