摘要
根据流固耦合作用的基本理论，依据不同温度下，瓦斯的吸附解吸规律，提出了非等温条件下瓦斯运移的数学模型，给出了用有限元求其数值解的方法及程序。在此基础上，对受温度场影响下煤岩体应力情况进行了数值计算分析，为进行煤层气开采和预防、预测煤和瓦斯突出，合理进行瓦斯抽放等提供了理论基础和科学依据。
On the basis of solid & liquid coupled theory and the gas's absorption law under different temperature, the authors give the mathematical model of gas flow under unequal temperature and its numerical solution. According to the above, the author simulated the stress of coal body influenced by temperature. The thesis's content can provided some theory basis for the prediction of gas and coal outburst and gas drainage.
出处
《西安矿业学院学报》
1999年第4期302-308,共7页
Journal of Xi'an University of Science & Technology
关键词
瓦斯渗流
非等温
流固耦合
煤层
瓦斯运移规律
gas porous flow
unequal temperature
solid fluid coupling
absorption
