基于CFD的洁净手术室速度场的数值模拟
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摘要
合理的气流组织是医院洁净手术室空调系统设计的重要内容。文章以RNGK-ε湍流双方程模型为基础,采用CFD技术,建立了相应的物理和数学模型,对上送——相对单侧墙底部回风洁净手术室内速度场进行了数值模拟,得到了洁净手术室内工作面三维速度场与二维流场的分布。
Reasonable airflow organization is a significant content in airflow design of hospital clean operating rooms.This study takes the hospital clean operating room with roof air supply and lateral air return at the bottom of one side as the object.Based on the RNG K-ε turbulent flow model,the corresponding physical and mathematical models are established by using the technology of computational fluid dynamics(CFD).The air velocity fields at different air change rates are analyzed.The distribution of the 3D velocity field and the 2D fluid flow at the working face is gained.
Reasonable airflow organization is a significant content in airflow design of hospital clean operating rooms.This study takes the hospital clean operating room with roof air supply and lateral air return at the bottom of one side as the object.Based on the RNG K-ε turbulent flow model,the corresponding physical and mathematical models are established by using the technology of computational fluid dynamics(CFD).The air velocity fields at different air change rates are analyzed.The distribution of the 3D velocity field and the 2D fluid flow at the working face is gained.
引文
[1]李长青,邢松年.空气洁净技术在洁净手术室中的应用[J].中国预防医疗杂志,2003,4(2):3-4.
[2]伍小亭,王砚,周建涛.手术室洁净空调系统设计探讨[J].暖通空调,2002,32(6):64-66.
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[5]Skye H M,Nellis G F,Klein S A.Comparison of CFD anal-ysis to empirical data in a commmerical vortex tube[J].In-ternational Journal of Refrigeration,2006,29:71-80.
[6]许钟麟,沈晋明,梅自力,等.主流区理论——我国医院洁净手术室要求集中布置送风口的理论基础[J].暖通空调,2001,31(5):2-6.
[7]唐会杰.医院洁净手术室的室内空调参数分析[J].洁净与空调技术,2002,(2):24-33.
[8]王福军.计算流体力学分析——CFD软件原理与应用[M].北京:清华大学出版社,2004:114-130.
[9]许钟麟.洁净室设计[M].北京:地震出版社,1994:46-48.
[2]伍小亭,王砚,周建涛.手术室洁净空调系统设计探讨[J].暖通空调,2002,32(6):64-66.
[3]Parra M T,Villafruela J M,Castro F,et al.Numerical andexperimental analysis of different ventilation systems indeep mines[J].Building and Environment,2006,41:87-93.
[4]Woloszyn M,Virgone J,Melen S.Diagonal air-distributionsystem for operating rooms:experiment and modeling[J].Building and Environment,2004,39:1171-1178
[5]Skye H M,Nellis G F,Klein S A.Comparison of CFD anal-ysis to empirical data in a commmerical vortex tube[J].In-ternational Journal of Refrigeration,2006,29:71-80.
[6]许钟麟,沈晋明,梅自力,等.主流区理论——我国医院洁净手术室要求集中布置送风口的理论基础[J].暖通空调,2001,31(5):2-6.
[7]唐会杰.医院洁净手术室的室内空调参数分析[J].洁净与空调技术,2002,(2):24-33.
[8]王福军.计算流体力学分析——CFD软件原理与应用[M].北京:清华大学出版社,2004:114-130.
[9]许钟麟.洁净室设计[M].北京:地震出版社,1994:46-48.
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