Wave Motion of Smoke in Subway Fire Environment

作     者：吴文忠 由世俊 WU Wenzhong,YOU Shijun(School of Environmental Science and Engineering,Tianjin University,Tianjin 300072,China)

作者机构：School of Environmental Science and EngineeringTianjin University 

出 版 物：《Transactions of Tianjin University》 (天津大学学报（英文版）)

年 卷 期：2009年第15卷第3期

页      面：206-209页

核心收录：

学科分类：08[工学] 0814[工学-土木工程] 082301[工学-道路与铁道工程] 0823[工学-交通运输工程] 

主　　题：subway fire environment smoke movement wave propagation 

摘      要：Wave motion in subway or tunnel fire is an intrinsic property of *** the pressure of smoke changes with mass of certain power,a kind of linear wave equation for smoke can be derived from the conservation equations of its mass and momentum,under nearly homogeneous zone *** smoke movement of 4 subway fires was simulated with *** fitting the pressure-mass functions to the simulated data,wave equations of the smoke were derived,and wave motions of smoke were thus *** can be seen that smoke wave is a kind of mass wave,whose velocity is inversely proportional to smoke mass,and wave of a bigger fire propagates slower.