The influence of the parameter γ choice on the variation of the pressure and flow rate, when the valve is closed at the end by the gravity feeding of the pipeline

Authors

  • B. Hoggas Moustapha ben Boulaid University of Batna – 2, Batna, Algeria
  • C. Hezil Moustapha ben Boulaid University of Batna – 2, Batna, Algeria

DOI:

https://doi.org/10.20535/2521-1943.2018.82.116129

Keywords:

the transition mode, gravity of the pipeline, instantaneous, sudden and slow mode, Pressure and flow variables, Bergeron graphical method, analytical method of characteristics

Abstract

A study of the change in pressure and flow in a pipeline that is connected to a tank (point B) having a constant water level for the entire time of the transition mode phenomenon, which occurs during the closure of the valve located at the end of the horizontal gravity of the pipeline (point A). Closing of this valve is performed in three ways - instantaneous, sudden and slow mode, the closing operation of the valve is expressed through a function of the time t and the parameter γ, characterizing the form of closing the section of this valve, γ can vary in the interval [0,7-1,5]. Variables of pressure and water flow rate at points (Q_t^A, H_t^A), (Q_t^B,H_t^B) и (Q_t^c,H_t^c ), at any instant t, respectively, to the gate valves, the tank and in the middle of the pipeline (point C), will be determined in two ways, the graphical method is the well-known Bergeron method, and the second is the analytical method of characteristics

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Published

2018-05-01

How to Cite

[1]
B. Hoggas and C. Hezil, “The influence of the parameter γ choice on the variation of the pressure and flow rate, when the valve is closed at the end by the gravity feeding of the pipeline”, Mech. Adv. Technol., no. 1(82), pp. 82–91, May 2018.

Issue

No. 1(82) (2018)

Section

Original study

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