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根据瓦斯的吸附解吸规律和煤与瓦斯固流耦合作用的机理,建立了非等温条件下瓦斯流动的数学模型,并给 出用有限元求其数值解的方法及程序。在此基础上,对不同温度下煤岩体应力和瓦斯压力的分布规律进行了数值模 拟。
According to the adsorption and desorption laws of gas and the mechanism of the coupling between coal and gas solid flow, a mathematical model of gas flow under non-isothermal conditions is established. The method and program for calculating the numerical solution by finite element method are given. On this basis, the distribution of stress and gas pressure of coal and rock mass under different temperatures are numerically simulated.