文档介绍：不同自然通风方式室内热舒适性数值模拟研究

常远刘泽勤郑晨潇

(天津商业大学,天津,天津市制冷技术重点实验室,300134)

摘要采用数值模拟方法对自然置换通风、自然层状通风、自然顶部通风三种自然通风方式室内温度场
和速度场进行研究,以获取三种自然通风方式中室内热舒适性,寻求各自然通风方式适用范围。研究结果
显示,三种自然通风方式中人体头部与脚踝之间垂直温差均小于5℃,满足人体热舒适对垂直温差的要求。
自然置换通风、自然顶部通风在人体呼吸区高度上气流速度分布比较均匀,除进风口以及出风口附近区域
,基本满足人体热舒适对吹风感的要求。
在实际操作中,应根据当地气候条件以及室内不同功能选择合理的自然通风方式。
关键词自然置换通风自然层状通风自然顶部通风热舒适

THE NUMERICAL SIMULATION OF INDOOR FORT WITH
DIFFERENT NATURAL VENTILATION MODES
Abstract In order to achieve indoor fort of three kinds of natural ventilation and explore the scope
application of them, numerical simulation is used to study indoor air temperature and velocity field of three kinds
of natural ventilation included natural displacement ventilation, natural layered ventilation, natural top ventilation.
The research results showed that vertical temperature ranges of the three kinds of natural ventilation were less
than 5℃, which could meet requirements for the fort. The air velocity of natural displacement
ventilation and natural top ventilation above human breathing zone was well-distributed, besides area near air
intake and air outlet, the air velocity in other area was less than , which would cause human
fortable, could meet requirements of hair drier feeling for human fort. The kind of natural
ventilation should be selected on the basis of local weather c