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以Darcy定律和煤层瓦斯流动理论假设为基础,运用质量守恒定律,建立了钻孔周围煤体瓦斯流动的数学模型,得到了钻孔周围瓦斯流动的方程及其定解条件。
Based on Darcy’s law and the theory of gas flow in coal seam, the mathematical model of gas flow around the borehole is established by using the law of conservation of mass. The equations of gas flow around the borehole and the solution conditions are obtained.