摘要
通过建立采空区流场物理数学模型,利用Fluent模拟软件,对采空区渗透率为连续分布、分段均匀分布和均匀分布3种不同条件下的氧浓度进行了数值模拟。结果表明,不同渗透率条件下的采空区自燃"三带"位置和宽度存在很大差异。
Through the establishment of con＇esponding physical - mathematical model of gob flow field, numerical simulations of oxygen concentration are conducted by using Fluent software under different distributions of gob permeability, such as continuous distribution, segmented uniform distribution and uniform distribution. It shows that great differences on position and width of gob spontaneous com- bustion ＂three zones＂ existing in different permeability.
出处
《煤矿安全》
CAS
北大核心
2014年第1期173-175,共3页
Safety in Coal Mines
关键词
采空区
渗透率
自燃
三带
数值模拟
gob
permeability
spontaneous combustion
three zones
numerical simulation
