【摘要】 在实验中观测了瓦斯自然上浮运动现象 ,通过理论分析 ,得出煤壁瓦斯自然上浮的边界层方程。通过数值计算得出的煤壁瓦斯上浮和浓度趋势与实验结果一致。更多还原

【Abstract】 Methane buoying up close to coal wall is obtained in experiment in the paper.The boundary layer equation of buoyant movement of methane is set up by means of theorectic analysis.The result shows that the buoyant law of methane close to coal wall and the distributions of methane concentration by calculating are in accordance with that from experiment.更多还原