Browsing EÚ-odbor fluidního inženýrství Viktora Kaplana by Subject "diffuser"
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Comprehensive Study Of Unsteady Pressure Pulsations Induced By The Spiral Vortex Structure In A Conical Diffuser
(Faculty of Technologies and Systems, 2015-09-09)The decelerated swirling flow often breaks down into helical structure which is unstable and causes unsteady velocity and pressure fields. The numerical and experimental investigation of this flow pattern is carried out ... -
Manipulation of the swirling flow instability in hydraulic turbine diffuser by different methods of water injection
(EDP Sciences, 2018-06-04)Vortex rope, which induces substantial pressure pulsations, arises in the draft tube (diffuser) of Francis turbine for off-design operating conditions. Present paper focuses on mitigation of those pulsations using active ...