Research Center for Engineering of
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Title: Unsteady pressure measurements in a conical difusser with swirling flow
Published In: Proceedings of the 4th Workshop on Vortex Dopminated Flows, Bucharest, Romania, Ed: Scientific Bulletin of the Politehnica University of Timisoara, Transaction of Mechanics Tom 53(67), Fascicola3, ISSN 1224-6077, pp. 81-89.
Description: The paper presents an experimental investigation of pressure fluctuations in conical diffuser with swirling flow. One of the main issues in draft tube cone of Francis turbine is the swirling flow and vortex rope when the turbines with fixed blades operate at partial load. To investigate the problem we design and built an experimental test rig. Also to control the swirling flow and the vortex rope is use a new method: injection of the water in draft tube. The measurements were made with two pressure transducers in order to analyse the behaviour of pressure fluctuations when we don’t have injection of the water and when an axial water jet is injected. Also is presented an analysis of the measurement for different jet discharge.
Publication year: 2008
Keywords:Conical diffuser, swirling flow, water jet control, pressure measurements
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Authors: BOSIOC Ilie Alin , SUSAN-RESIGA Romeo , MUNTEAN Sebastian ,
Type: National Conference Proceedings
Laboratory: Numerical Simulation and Parallel Computing Laboratory
Institution: UPT