| 层流管流入口压力突然升高引起的水力瞬变的理论分析 |
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| 引用本文： | 邓松圣,周绍骑,廖振方,邱正阳,曾顺鹏.层流管流入口压力突然升高引起的水力瞬变的理论分析[J].应用数学和力学,2004,25(6):614-620. |
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| 作者姓名： | 邓松圣 周绍骑 廖振方 邱正阳 曾顺鹏 |
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| 作者单位： | 后勤工程学院 军事供油工程系,重庆 400016;2.重庆大学 机械工程学院,重庆 400044;3.重庆石油高等专科学校,重庆 400016 |
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| 摘 要： | 研究了层流状态下管道入口压力突然升高引起的水力瞬变过程，建立了瞬态压力分布的偏微分方程和初边值条件，用分离变量法求得了压力的理论解．根据压力和流量间的约束关系，得到了关于流量的偏微分方程和初边值条件，用分离变量求得了瞬变过程流量分布理论解．最后，用特征线法(MOC)对该问题进行了数值求解，理论解和数值解吻合很好．
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| 关 键 词： | 层流 管流 水力瞬变 理论解 |
| 文章编号： | 1000-0887(2004)06-0614-07 |
| 收稿时间： | 2002-06-23 |
| 修稿时间： | 2002年6月23日 |
Theoretical Analysis on Hydraulic Transient Resulted by Sudden Increase of Inlet Pressure for Laminar Pipeline Flow |
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| DENG Song_sheng.Theoretical Analysis on Hydraulic Transient Resulted by Sudden Increase of Inlet Pressure for Laminar Pipeline Flow[J].Applied Mathematics and Mechanics,2004,25(6):614-620. |
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| Authors: | DENG Song_sheng |
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| Institution: | Department of Oil Supply Engineering, Chongqing College of Logistic Engineering, Chongqing 400016, P. R. China; |
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| Abstract: | Hydraulic transient, which is resulted from sudden increase of inlet pressure for laminar pipeline flow, is studied. The partial differential equation, initial and boundary conditions for transient pressure were constructed, and the theoretical solution was obtained by variable_separation method. The partial differential equation, initial and boundary conditions for flow rate were obtained in accordance with the constraint correlation between flow rate and pressure while the transient flow rate distribution was also solved by variable_separation method. The theoretical solution conforms to numerical solution obtained by method of characteristics (MOC) very well. |
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| Keywords: | laminar flow pipeline flow hydraulic transient theoretical solution |
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