某展厅旋流风口顶板送风系统的数值模拟研究  

Numerical Simulation of Roof Air Distribution with Swirl Diffusers for Exhibition Hall in Shanghai

作　　者：郑晓薇[1] 张旭[1] 李玉航[1] 潘欣钰[2] 邓辉[2] ZHENG Xiao-wei;ZHANG Xu;LI Yu-hang;PAN Xin-yu;DENG hui(Tongji University, Shanghai 201804, China;China Shipbuilding NDRI Engineering Co. , Ltd. , Shanghai 200063 , China)

机构地区：[1]同济大学,上海201804 [2]中船第九设计研究院工程有限公司,上海200063

出　　处：《节能技术》2017年第5期387-391,共5页Energy Conservation Technology

摘　　要：为研究旋流风口送风对上海某建筑多功能展厅的效果,利用CFD方法对冬、夏季可调式旋流风口的典型角度工况(供热、供冷工况分别为90°、45°)进行模拟,得到了室内流场、温度场、PMV-PPD及空气龄分布。结果表明:旋流风口能够较好地满足冬、夏工况的需要,水平温度、速度场分布均较为均匀。由于冬夏季角度设置差异,垂直方向上冬季工况的最大温差小于夏季工况,射流距离大于夏季工况,而夏季气流的水平扩散效果优于冬季。基于PMV-PPD和空气龄的热环境数值预测与评价,可得出冬季的热舒适感觉优于夏季,两者空气龄差异较小,展厅内的空气品质相对良好。This paper is based on the study of the swirl diffusers effectiveness to multifunctional exhibitionroom in Shanghai.It is used the professional software Fluent for typical angle conditions in winter andsummer(heating,cooling conditions were900,450)of adjustable swirl diffusers to simulate indoor flowfield,temperature distribution,and through the UDF obtained PM V-PPD and the air age distribution.The results showthat swirl diffusers can better meet the needs of winter and summer conditions,the levelof temperature and velocity distribution are relatively uniform,and because of differences summer angle setting,the maximum temperature difference in the vertical direction in the mode of thewinter case is less than that in summer,the jet distance is farther than summer condition,of horizontal diffusion in summer is better than in winter.Based on numerical prediction thermal environment PMV-PPDand the air age,it can be drawn thermal comfort in in summer,the difference of the air age between them is little,the air quality inside is relatively good.

关 键 词：展厅 旋流风口 数值模拟 PMV-PPD 空气龄 

分 类 号：V233.2[航空宇航科学与技术—航空宇航推进理论与工程]