ventilation opening

This paper simulates room fire with field model FDS and studies the influence of ventilation condition on indoor fire. Combustion situation can convert periodically under a certain door opening.

利用烟火运动场模型（FDS）模拟室内火灾过程，研究了通风开口大小对室内燃烧状况的影响，发现一定房门开度下，燃烧状况会发生周期性转换；

Ventilation opening should be special enough in Enclosed lamp house.

封闭的灯箱安装,应有足以散热的通风口.

The temperature, humidity, illumination, and ventilation in the opening sheds adopted are good.

采用开放可封闭式羊舍,舍内温度 、 湿度 、 光照 、 通风等环境条件良好.

The paper perfected and extended the predicted model of air flow rates in natural ventilation driven by both wind and thermal force in four-opening buildings, which has been introduced in the British Standard ( BS5925).

本文改进并拓展了英国自然通风标准BS5925中的风力与热浮力共同作用的四开口建筑的自然通风的风量计算模型。