香港某医院手术室内通风效果的数值研究

Numerical study on ventilation performance of a hospital operating room in Hong Kong

医院手术室对室内的速度场、温度场及有害气体和细菌的分布有严格的要求。应用商用软件对某手术室的通风效果作了数值模拟。计算采用RNGK ε紊流模型 ,使用现场测量数值作为边界条件 ,求解了三维速度场、温度场及空气龄。研究表明 ,使用数值方法可以得出通风空间内每一点的详细情况 ,可对整体通风效果进行全面评价 。

The operating rooms require stringent conditions in distribution of air flow velocity and temperature and concentration of contaminants. Numerically simulates the ventilation effectiveness in a hospital operating room, by use of a commercial software and an RNG K ε turbulent model, with boundary conditions of site measured data, solving 3 D velocity and temperature and air age in the space. The results demonstrate that the CFD approach is capable of providing full information of the air flow everywhere within space and therefore allows an overview of ventilation performance. States that the findings are helpful in design and acceptance of the ventilation systems.