2. Theoretical basis

2.1 Speed triangles

The movement of a liquid particle in a coupler, as in all hydraulic turbomachines, can be described using three speeds:

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Theoretical basis

(1) - WOLF (M.) - Stromungskuplungen und Stromungswandler. Berechnung und Konstruktion (Coupleurs et convertisseurs hydrodynamiques). - 1962 Springer-Verlag Berlin.
(2) - PELIGRAD (N.) - Cuplaje hidraulice si convertizoare hidraulice...