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Applied Mathematics and Mechanics (English Edition) ›› 2004, Vol. 25 ›› Issue (6): 672-678.

• 论文 • 上一篇    下一篇

THEORETICAL ANALYSIS ON HYDRAULIC TRANSIENT RESULTED BY SUDDEN INCREASE OF INLET PRESSURE FOR LAMINAR PIPELINE FLOW

邓松圣1,2, 周绍骑1, 廖振方2, 邱正阳3, 曾顺鹏3   

  1. 1. Department of Oil Supply Engineering, Chongqing College of Logistic Engineering, Chongqing 400016, P. R. China;
    2. Mechanical College, Chongqing University, Chongqing 400044, P. R. China;
    3. Chongqing Petroleum College, Chongqing 400016, P. R. China
  • 收稿日期:2002-03-23 修回日期:2004-01-08 出版日期:2004-06-18 发布日期:2004-06-18

THEORETICAL ANALYSIS ON HYDRAULIC TRANSIENT RESULTED BY SUDDEN INCREASE OF INLET PRESSURE FOR LAMINAR PIPELINE FLOW

DENG Song-sheng1,2, ZHOU Shao-qi1, LIAO Zhen-fang2, QIU Zheng-yang3, ZENG Shun-peng3   

  1. 1. Department of Oil Supply Engineering, Chongqing College of Logistic Engineering, Chongqing 400016, P. R. China;
    2. Mechanical College, Chongqing University, Chongqing 400044, P. R. China;
    3. Chongqing Petroleum College, Chongqing 400016, P. R. China
  • Received:2002-03-23 Revised:2004-01-08 Online:2004-06-18 Published:2004-06-18

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摘要： 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.

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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