基于CFD及正交试验的工作面流场参数优化  

Optimization of flow field parameters in working face based on orthogonal experiment and CFD

作　　者：孙晓梅[1] 吕品[1] 刘琛琛[1] 张文涛[1] 

机构地区：[1]安徽理工大学,安徽淮南232000

出　　处：《中国安全生产科学技术》2014年第4期54-58,共5页Journal of Safety Science and Technology

摘　　要：采空区注氮是一种常用的采空区防灭火及治理遗煤自燃的措施,与采空区瓦斯抽采及工作面通风相似,均会对整个工作面及采空区流场产生影响,为了实现工作面及采空区生产安全性及经济性最优化,对进风量、采空区流管总量、流管高度、流管间距、注氮量、注氮位置六因素进行正交试验,借助数值模拟软件对正交试验确定的方案进行三维流场模拟,根据模糊数学相关理论选择模糊优选评价指标及指标权重,对所得结果进行优选,得到所有因素的最优解,进而得到优组合。实现采空区注氮、瓦斯抽采及工作面通风参数优化。Nitrogen injection , as a commonly used measure of fire and spontaneous combustion prevention , like ventilation and gas extraction of the gob , could influence the flow field of the whole face and gob .In order to reach the goal of optimization about safety and economy , the air output , gob total flow tube , the height of tube , the flow tube spacing , nitrogen injection , and the location of nitrogen injection were selected to design a orthogonal experiment , by means of numerical simulation software orthogonal test program for the three-dimensional flow field simulation.Based on the theory of fuzzy mathematics , the fuzzy optimal evaluation index and index weight were chosen , the results obtained were optimized , and the optimal solution for all factors were obtained , then the excellent combination was obtained .So the optimization of injection in golf ,gas extraction and ventilation parameter in working face can be achieved .

关 键 词：流场优化 注氮 瓦斯抽采 正交试验 

分 类 号：X936[环境科学与工程—安全科学]