Experimental study of air delivery into water-conveyance system of the radial-axial turbine
Siberean Federal University, 79 Svobodny pr., 660041 Krasnoyarsk, Russia
2 Institute of Thermophysics, SB RAS, 1 Lavrentyev pr., 630090, Novosibirsk, Russia
* Corresponding author: email@example.com
Published online: 25 October 2017
The paper presents an experimental study of oscillatory response in the Francis turbine of hydraulic unit. The experiment was performed on large-scale hydrodynamic test-bench with impeller diameter of 0.3 m. The effect of air injection on the intensity of pressure pulsations was studied at the maximum pressure pulsations in the hydraulic unit. It was revealed that air delivery into the water-conveyance system of the turbine results in almost two-fold reduction of pressure pulsations.
© The authors, published by EDP Sciences, 2017
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