【摘要】 本文介绍了树枝状系统输气干线不稳定工况的简化数学模型及相应的定解问题,并给出了四种定解问题的一般解析表达式。应用所获得的解析式,以三角插值函数作为边界情况,通过计算机对某干线进行了实际模拟。结果表明,对于长距离输气干线完全可用简化模型的解。更多还原

【Abstract】 In this paper, a simplified mathematical model for unstable operation of the branch-shaped main gas pipe line as a system and respective definite solution problem are Introduced, and a general analytical expression for four definite solutions Is given out. By applying the analytical expression obtained and taking trigonometric Interpolating function as the boundary, a practical simulation of a certain main line is finished by computer, and the result shows that the solution of the simplified model can be completely used for the long distance main gas pipe line.更多还原