摘要
为研究矿井火灾时期发生烟流滚退时火源区域烟流流动规律,分析了矿井水平巷道火烟浮羽流及顶板射流的成因和特点,并运用环境流体力学及传热学的相关理论,分析了水平巷道火灾烟流滚退规律,结合积分法建立了火烟浮羽流和顶板射流的数学物理模型.通过对滚退烟流与巷壁之间的热交换过程的分析,推导出滚退发生时烟流逆行距离的函数表达式,联合火烟浮羽流和顶板射流数学物理模型,得出求解烟流滚退逆行距离的数学方程式.
This paper analyzed the formation causes and characteristics of fire buoyant plume and smoke ceiling jet during a horizontal airway fire.The rollback law of the reversal smoke flow during mine fire was also analyzed by means of the theories of environmental fluid mechanics and heat transfer.Combining with the integration, the mathematical physics models of buoyant plume and ceiling jet were set up.Meanwhile, the heat transfer process between the reversal smoke and the airway wall was analyzed.Using the mathematical physics models of plume and ceiling jet set up, the equation for layer length of the rollback smoke was deduced.
出处
《煤炭学报》
EI
CAS
CSCD
北大核心
2004年第2期190-194,共5页
Journal of China Coal Society
基金
十五"国家科技攻关项目(2001BA803B0416)
国家自然科学基金重点资助项目(50134040)
