基于CFD的洁净手术室速度场的数值模拟

Numerical simulation of velocity fields in clean operating rooms based on CFD

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.