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首页> 外文会议>The 2008 International Symposium on Safety Science and Technology(2008年安全科学技术国际会议)论文集 >Research on the Influence of Environmental Wind on Natural Smoke Exhaust During Building Fire
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Research on the Influence of Environmental Wind on Natural Smoke Exhaust During Building Fire

机译：环境风对建筑火灾中自然烟气排放的影响研究

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摘要

Environmental wind is one of the main driving forces which discharge fire smoke outside the buildings that adopt the method of natural smoke exhaust. The additional pressure difference caused by environmental wind on the buildings' surface was analyzed and the total additional pressure coefficient was proposed as control parameter.in order to evaluate the efficiency of environmental wind on natural smoke exhaust. In the instance-a theatre-by CFD, a software used for the numerical simulation research on the course of natural smoke exhaust, the effects of the environmental wind on natural smoke exhaust in different combinations of vents and the main reasons of bidirectional flow in the smoke vent openings were studied. It can be referred for designing of natural smoke exhaust system.
机译：环境风是采用自然烟气排放方法将火烟排放到建筑物外部的主要驱动力之一。分析了建筑物表面环境风引起的附加压力差，提出了总附加压力系数作为控制参数，以评价环境风对自然烟气排放的效率。在CFD实例剧院中，该软件用于对自然烟气排放过程，不同出风口组合中环境风对自然烟气排放的影响以及空气中双向流动的主要原因进行数值模拟研究的软件。研究了排烟口。可为自然排烟系统的设计提供参考。

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