湿热地区全民健身中心形态构成与自然通风

Shape Construction and Natural Ventilation of National Fitness Center in Hot and Humid Areas

为提升湿热地区全民健身中心在自然通风调节下的室内换气次数、改善运动场地舒适度,以广州地区为例,利用Fluent等软件对不同形态构成方式的全民健身中心模型进行模拟计算。通过实验发现:从剖截面上来看,相同内退方向时平滑式内退形态较错层式内退形态对各层换气次数提升效果明显;不同内退方向时,下部平滑式内退形态较上部平滑式内退形态换气次数提升幅度大,但室内1.5m高风速提升效果不如后者;在下部平滑式内退形态基础上提出优化模型,以实现室内自然换气和运动人群热舒适性的双重提高。

To improve the air change rate under natural ventilation and the comfort level of sport field of national fitness centers in hot and humid areas, an analog computation was conducted for different shapes of national fitness center models via the software such as Fluent, taking Guangzhou area as an example. From the sections, it is discovered in the test that in the same retreated direction, the air change rate of smooth-retreated shape model is greater than that of retreated shape model via staggered floors. To underside smooth-retreated shape model, its air change rate of is greater than upside smooth-retreated shape model＇s, but its air speeds at 1,5m height above the ground on each floor are less than the latter＇s. Then based the underside smooth-retreated shape model, an optimized model was put forward to improve both the inner natural ventilation and the thermal comfort of sports.