昆明某新冠病毒隔离病房气流组织模拟分析

Simulation and Analysis of Air Distribution in a 2019 Novel Coronavirus Isolation Ward in Kunming

利用计算流体与计算传热学软件PHOENICS对昆明应对新冠疫情新建的某应急医院新冠病毒隔离病房气流组织进行数值模拟。通过数值模拟分析得出四种不同气流组织形式的新冠病毒浓度场、空气速度场分布的模型。并对这些模型进行分析和对比,得出方案二以每个床位均匀布置散流器顶送风,床头旁下排风的气流组织形式稀释新冠病毒效果最好。最后设计采用了该气流组织方式来进行设计。

The flow distribution of Novel Coronavirus isolation ward in a newly built emergency hospital for COVID-19 in Kunming was numerically simulated by using computational fluid and computational heat transfer software PHOENICS.The concentration field and air velocity field distribution models of Novel Coronavirus with four different air distribution forms were obtained by numerical simulation analysis.Through analysis and comparison of these models,it is concluded that the optimal dilution effect of Novel Coronavirus is obtained in the form of air distribution in which the diffuser is uniformly arranged at the top of each bed to supply air and the air is discharged at the head of the bed.Finally,the design uses the air distribution mode to design.