| 呼吸道传染性疾病负压隔离病房带菌飞沫和CO2分布特性的模拟比较研究 |
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| 引用本文： | 嵇赟喆,王晓杰,李晓静,张娅婷.呼吸道传染性疾病负压隔离病房带菌飞沫和CO2分布特性的模拟比较研究[J].护理学杂志,2011,26(21):1-5. |
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| 作者姓名： | 嵇赟喆 王晓杰 李晓静 张娅婷 |
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| 作者单位： | 1. 海军工程大学天津校区军港机场营房系,天津,300450
2. 天津第五中心医院急救科 |
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| 摘 要： | 目的比较呼吸道传染性疾病负压隔离病房内颗粒污染物分布和CO2示踪气体分布的相似性,并探讨用CO2检验病房内飞沫分布的计算流体力学(CFD)模拟结果的可行性,为进行病房气流组织的CFD研究提供参考。方法建立某呼吸道传染病房气流组织模型,分别具有按稳态咳嗽模式释放的颗粒释放源及类似的CO2释放源,模拟计算颗粒和CO2随空气流动及分布状况,并分析两者分布的相似性。结果模拟患者释放飞沫分布与CO2的分布在大部分区域较相似。结论在呼吸道传染病房释放CO2的试验证明了相关CFD模拟计算结果的准确性。采用CFD模拟计算病房内颗粒污染物的分布,并用CO2示踪气体验证其模拟结果的方法是可行的。
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| 关 键 词： | 呼吸道传染性疾病 负压隔离病房 带菌飞沫 CO2分布 气流分布 咳嗽 计算流体力学 |
Distribution of droplet-nuclei in airborne infectious isolation room and distribution of CO_2:a comparative study |
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| Ji Yunzhe,Wang Xiaojie,Li Xiaojing,Zhang Yating.Distribution of droplet-nuclei in airborne infectious isolation room and distribution of CO_2:a comparative study[J].Journal of Nursing Science,2011,26(21):1-5. |
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| Authors: | Ji Yunzhe Wang Xiaojie Li Xiaojing Zhang Yating |
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| Affiliation: | Ji Yunzhe,Wang Xiaojie,Li Xiaojing,Zhang Yating(Naval Port,Airport and Barracks Department,Tianjin Campus,Navy Engineering University,Tianjin 300450,China) |
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| Abstract: | Objective To compare the similarity between indoor droplet-nuclei distribution and tracer gas CO2 distribution,to explore the feasibility of using CO2 to test the Computational Fluid Dynamics(CFD) simulation result of droplet nuclei distribution,and to provide references to CFD study of ward airflow.Methods Two airflow models of an airborne infectious isolation ward(one with particle source releasing droplet-nuclei in steady cough mode and the other with CO2 source releasing in similar mode),were built indi... |
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| Keywords: | airborne infectious disease negative pressure isolation ward droplet-nuclei with pathogen CO2 distribution airflow distribution cough computational fluid dynamics |
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