3 Hydrodynamics
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Fig. 3.104 Energy Dissipation in Ertan Hydropower Station
Hydraulic transmission is a transmission method that uses liquid as the
working medium to transfer energy and control. Hydraulic transmission and
pneumatic transmission are called fluid transmission, which is an emerging
technology developed based on the principle of hydrostatic transmission
proposed by Pascal in the seventeenth century. It is a widely used technology
in industrial and agricultural production. Today, the level of fluid transmission technology has become an important symbol of a country’s industrial
development level.