基于COMSOL软件下办公建筑室内通风分析

自然通风不需动力设备,不消耗动力,是一种经济节能的通风方式。建筑通风应优先利用自然通风。窗户尺寸、开窗面积比例,窗户高度都是自然通风的影响因素。本研究利用COMSOL Multiphysics的CFD模块,以数值模拟的方式对不同窗户尺寸、开窗面积比例、窗户高度的办公建筑进行室内自然通风模拟,分析自然通风对这些办公建筑内的气流和温度的影响,得出窗户尺寸为900 mm×1500 mm,窗台高1100 mm,满窗通风的方案最符合办公室自然通风要求,该分析结果可为建筑设计提供参考依据。

Analysis of Indoor Ventilation in Office Building Based on COMSOL Software

Natural ventilation,which does not require power equipment or consume power,is an economical energy-saving ventilation approach. Priority should be given to natural ventilation in building ventilation. Window size,window area ratio and window height are all the factors influencing natural ventilation. The CFD module of COMSOL multiphysics was used to simulate the indoor natural ventilation of office buildings with different window sizes,window area ratios and window heights by numerical simulation in this study. Then the effect of natural ventilation on the air flow and temperature in the office building with different window size,window area ratio and window height were analyzed. The results show that when the window size is 900 × 1500 mm,the height of windowsill is 1. 1 m,and the scheme of full window ventilation is the most suitable for office natural ventilation. The analysis results can provide a reference for architectural design.