4. Louis Bergeron's method
Louis Bergeron's method can be used to determine pressure and flow variations due to water hammer in hydraulic systems, without having to explain the nature of the wave analytically. Originally a graphical method, it has now been transposed to software. For didactic purposes, we will develop the graphical method below, which has the merit of being very simple once you understand the construction mechanism.
4.1 Method principle
Designers and users of hydraulic systems prefer to express pressures in terms of fluid column height, and to replace average flow velocity with volume flow. It should also be noted that they generally count effective pressures, i.e. absolute pressure minus atmospheric pressure. This amounts to :
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Louis Bergeron's method
Water hammer in pumping stations
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