| 径向流场瓦斯压力分布 |
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| 引用本文： | 孙培德.径向流场瓦斯压力分布[J].山东科技大学学报(自然科学版),1989(4). |
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| 作者姓名： | 孙培德 |
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| 作者单位： | 浙江省长广煤矿公司安监局 |
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| 摘 要： | 研究煤层瓦斯径向流场的流动方程——非线性偏微分方程的解析解迄今仍是数学难题。作者通过变量替换和适当化简,获得其近似的解析解,即径向流场瓦斯压力分布规律表达式,以此建立起煤层瓦斯抽放参数的解析计算式。经计算机的数值计算验证,新的解析式是可靠的,而且精度较高,简便实用。
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| 关 键 词： | 瓦斯流动 流场 径向流动 瓦斯压力 分布规律 流动方程 线性偏微分方程 解析解 |
DISTRIBUTION OF GAS PRESSURE IN RADIAL FLOW FIELDS |
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| Sun Peide.DISTRIBUTION OF GAS PRESSURE IN RADIAL FLOW FIELDS[J].Journal of Shandong Univ of Sci and Technol: Nat Sci,1989(4). |
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| Authors: | Sun Peide |
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| Abstract: | It's still a difficult problem so far to find the analytic solutionsfor the gas flow equations nonlinear partial differential equations of radial flow fields in coalseams the author develops its approximate andlytic solutions with the variable substitution and the proper simplification, ie the distribution expression of gas pressure in radial flow fields then, the analytic calculating forvnulas of gas drainage parameters are setup. The numerical caleulation buith computers demonsteates that the new mathematical formulas are reliable and precise enough and easy to use |
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| Keywords: | Gas migration flow fields radial flow Gas pressure regularities of distribution flow equations Non-Linear partial aifferential equation analytic solution |
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