Based on the structural characteristics of existing buildings and the disadvantages of current mixed ventilation mode in the application to large space buildings, an original column attachment ventilation (CAV) has been proposed. In this study, the experiment utilized a room space with four columns uniformly distributed in the space to visualize the movement of attached airflow along the cylinder surface and the floor, the numerical technique was employed to study the effects of the column layout (i.e., uniform, centralized, dispersed, and crossed distribution) on the air distribution of CAV mode in a standard four-column full scale model of a shopping mall. Seven indices, including airflow pattern, air diffusion performance index (ADPI), air temperature distribution, heat removal effectiveness, draught rate (DR), predicted mean vote (PMV), and carbon dioxide (CO₂) concentration, were used to assess the ventilation performance. In the CAV mode with a uniform column layout scheme, the experimental results indicated that the air supply flows downward along the wall surface, forming a secondary attachment with the ground and spreading along the floor in a fan radiation flow mode. Further, an “air lake”—like speed and temperature distribution similar to displacement ventilation (DV) was formed in the occupied zone. In all simulation cases, it was found that the average air velocity was less than 0.25 m/s in occupied zone, the effectiveness for heat removal was more significant than 1.0, DR value was less than 20%, the PMV level can also satisfy most people. The average CO₂ concentration was around 470 ppm in the occupied breathing zone. These results indicated that the CAV mode could be an efficient air distribution method. They demonstrated the technical feasibility of applying the CAV in the space under different column layout schemes.

基于现有建筑物的结构特点以及当前混合通风方式在大空间建筑物中应用的弊端，提出了一种原始的立柱通风装置（CAV）。在这项研究中，实验利用一个空间，其中四个圆柱均匀地分布在空间中，以可视化附着的气流沿着气缸表面和地板的运动，采用数值技术研究圆柱布局的影响（即均匀，集中式，分散式和交叉式分布）在购物中心的标准四列全尺寸模型中的CAV模式的空气分布中。七个指数，包括气流模式，空气扩散性能指数（ADPI），气温分布，排热效率，吃水率（DR），预测平均投票（PMV），₂）浓度，分别用于评估通风性能。在具有均匀列布局方案的CAV模式下，实验结果表明，空气供应沿壁表面向下流动，与地面形成辅助连接，并以扇形辐射流模式沿地面扩散。此外，在被占区域中形成了类似于位移通风（DV）的速度和温度分布之类的“空气湖”。在所有模拟情况下，发现占用区域的平均风速均小于0.25 m / s，除热效率大于1.0，DR值小于20％，PMV水平也可以满足大多数人。平均CO ₂在所占用的呼吸区中，铅的浓度约为470 ppm。这些结果表明，CAV模式可能是一种有效的空气分配方法。他们展示了在不同的列布局方案下在空间中应用CAV的技术可行性。