工作区有隔断的大空间建筑CFD模拟

CFD Analysis of Large Space Building with Barriers in Occupied Zone

本文通过数值模拟的方法对不同送风方式下工作区内有、无隔断物时,工作区内的空气分布特性及舒适性进行研究。对室内舒适性的评价基于整合于CFD软件内部的Fanger舒适性方程。对气流分布特性的评价采用了ADPI指标。模拟结果显示,隔断物对喷口送风方式的影响大于对旋流风口送风方式的影响;旋流风口送风方式优于喷口送风方式;改变喷口送风高度并不能明显改善隔断物带来的影响。两种送风方式工作区内的PMV指标都符合GB/T18049-2000的要求。本文的结论可以作为以后同类工程的借鉴和指导。

Analysis of large space building with barriers in occupied zone is investigated. The numerical simulation was adopted to predict the influence cause by barriers. The prediction of indoor thermal comfort is based on Fanger＇s comfort equation incorporated in the CFD software, and the air distribution performance is evaluated with ADPI. It is shown that barriers influence occupied zone for both air supply method, and through ADPI, air supply with vortex method is better than nozzle. The influence by barriers can＇t be improved through changing height of nozzles. PMV index of both air distribution method according with GB/T18049-2000. Results in the paper provide reference and guide to project of this kind.