Botero Herrera, Francisco Javier2014-07-112012621CD G993https://hdl.handle.net/10784/2814A non-conventional tufting visualization method along with an image processing development and specific applied technique adapted to the flow conditions is proposed and implemented on a reduced scale model of a Francis-type reversible pump-turbine in three different turbine stages such as turbine mode, runaway mode and turbine break mode, in order to visualize rotating stall phenomenon -- Fluorescent monofilament wires along with high speed image processing and pressure sensors were installed in the narrow and vane less gap between the impeller blades and guide vanes -- Pressure fluctuations were analyzed along with tuft visualization to describe the flow with and without rotating stallapplication/pdfengIngeniería MecánicaDinámica AplicadaTurbinasTesis. Maestría en Ingenieríainfo:eu-repo/semantics/masterThesisinfo:eu-repo/semantics/openAccessTURBINASSISTEMAS DE CONTROL LINEALROTORES - DINÁMICABOMBAS (MÁQUINAS)BOMBAS CENTRÍFUGASVIBRACIÓNTurbinesLinear control systemsRotors - dynamicsPumping machineryCentrifugal pumpsVibrationAcceso abierto2014-07-11Guzmán Díaz, Sebastiánreponame:Repositorio Institucional Universidad EAFITinstname:Universidad EAFITrepourl:https://repository.eafit.edu.cohttp://purl.org/coar/access_right/c_abf2