S
Sebastian Muntean
Researcher at Romanian Academy
Publications - 88
Citations - 1219
Sebastian Muntean is an academic researcher from Romanian Academy. The author has contributed to research in topics: Draft tube & Vortex. The author has an hindex of 17, co-authored 82 publications receiving 968 citations. Previous affiliations of Sebastian Muntean include Politehnica University of Timișoara.
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Analysis of emerging technologies in the hydropower sector
Ioannis Kougias,George A. Aggidis,François Avellan,Sabri Deniz,Urban Lundin,Alberto Moro,Sebastian Muntean,Daniele Novara,Juan I. Pérez-Díaz,Emanuele Quaranta,Philippe Schild,Nicolaos Theodossiou +11 more
TL;DR: In this article, a review of research and development activities in the field of hydropower technology is presented, covering emerging and advanced technologies to mitigate flow instabilities (active and passive a...
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Unsteady Pressure Analysis of a Swirling Flow With Vortex Rope and Axial Water Injection in a Discharge Cone
TL;DR: In this paper, a special test rig was developed at “Politehnica” University of Timi-soara in order to investigate different flow control techniques for a Francis turbine cone at 70% partial discharge.
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Failure analysis of a Francis turbine runner
TL;DR: In this paper, the authors present the failure analysis of a broken Francis turbine runner blade, which appeared some months after the welding repair work realized in situ on fatigue cracks initiated near to the trailing edge at the junction with the crown.
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Analysis and Prevention of Vortex Breakdown in the Simplified Discharge Cone of a Francis Turbine
TL;DR: In this article, the decelerated swirling flow into the discharge cone of a model Francis turbine operated at variable discharge and constant head was analyzed using an axisymmetric turbulent swirling flow model and a corresponding simplified computational domain.
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Mathematical modelling of swirling flow in hydraulic turbines for the full operating range
TL;DR: In this paper, a mathematical model for computing the radial profiles of both axial and circumferential velocity components, respectively, of the swirling flow exiting the runner of hydraulic turbines within the full operating range is presented.