Experimental Investigations of the Vortex Rope into a Simplified Draft Tube and its Flow Control
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ACTA Technica Napocencis, Series: Applied Mathematics and Mechanics, No. 52, vol. II, pp. 249 -257.
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Operating Francis turbines at partial discharge is often hindered by the development of the
helical vortex (so-called vortex rope) downstream the runner, in the draft tube cone. The unsteady
pressure field induced by the precessing vortex rope leading to pressure fluctuations. In this paper a
simple and robust method to mitigate the vortex rope by using an axial water jet is evaluated. The vortex
rope mitigation using jet control method is investigated experimentally on the test rig developed at the
Politehnica University of Timisoara (UPT) – National Center for Engineering Systems with Complex
Fluids (NCESCF).
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ISSN 1221-5872 |
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2009
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Paper
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BAYA Alexandru
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BOSIOC Ilie Alin
,
MUNTEAN Sebastian
,
SUSAN-RESIGA Romeo
,
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National Journal Article
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Numerical Simulation and Parallel Computing Laboratory
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Institution: |
UPT
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