Analysis of water hammer in a penstock in the case of valve closure. Part 2: Pressure losses concentrated downstream

Hocine HAMMOUM, Akli YAHIAOUI, Bachir ACHOUR

Abstract


In our previous study (Part 1); by using the graphic of Bergeron, we have drawn the relationships which allow calculating flows and pressures at the valve and the reservoir, considering that pressure losses are negligible. Now, we assume in this second contribution that these pressure losses are concentrated downstream of the pipe, just at the entry of the valve. The study will focus on water hammer-induced by a slow closing of the valve. A practical example will be presented at the end of this work in order to illustrate the exposed method.

 


Keywords


Diagram of Bergeron; Water hammer; Pressure losses; Closing valve

References


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ISSN 2170-127X

Creative Commons License
This work is licensed under a Creative Commons Attribution-ShareAlike 4.0 International License.
Based on a work at http://revue.ummto.dz.