FRINK Linked Data Fragments server

Matches in SemOpenAlex for { <https://semopenalex.org/work/W2891150435> ?p ?o ?g. }

• W2891150435 endingPage "2320" @default.
• W2891150435 startingPage "2320" @default.
• W2891150435 abstract "When discussing potential resonances in hydraulic turbine runners, cavitation effects are usually neglected. Nevertheless, recent studies have experimentally proved, that large cavitation volumes in the proximity of flexible simple structures, such as hydrofoils, greatly modify their natural frequencies. In this paper, we analyze a resonance case in a Francis runner that leads to multiple fractures on the trailing edge of the blades, after just one day of operation at deep part load. If simple acoustic Fluid-Structure-Interaction (FSI) simulations are used, where the runner’s surrounding fluid is considered as a homogenous acoustic medium (water), the risk of structural resonances seems to be limited as the predicted natural frequencies are far enough from the excited frequencies by the flow. It is shown that the only hydraulic phenomenon which could have produced such fractures in the present case is the Rotor Stator Interaction (RSI). In order to analyze possible cavitation effects on the natural frequencies of the turbine runner, CFD simulations of the deep part load conditions have been performed, which predict large inter-blade vortex cavities. These cavities have been then introduced in the acoustical FSI model showing that under such conditions, natural frequencies of the runner increase approaching to some of the RSI excited frequencies. In particular, a possible resonance of the four-nodal diameter (4ND) mode has been found which would explain the fast behavior of the crack propagation. Furthermore, the shape and the position of the real fracture found agree with the local maximum stress spots at the junction between the trailing edges and the crown." @default.
• W2891150435 created "2018-09-27" @default.
• W2891150435 creator A5017132636 @default.
• W2891150435 creator A5052682393 @default.
• W2891150435 creator A5067130678 @default.
• W2891150435 creator A5073288335 @default.
• W2891150435 creator A5077048498 @default.
• W2891150435 date "2018-09-03" @default.
• W2891150435 modified "2023-10-18" @default.
• W2891150435 title "Cavitation Effects on the Structural Resonance of Hydraulic Turbines: Failure Analysis in a Real Francis Turbine Runner" @default.
• W2891150435 cites W1632282599 @default.
• W2891150435 cites W1965429368 @default.
• W2891150435 cites W1969248460 @default.
• W2891150435 cites W1972636587 @default.
• W2891150435 cites W1976141451 @default.
• W2891150435 cites W1989804481 @default.
• W2891150435 cites W1989975952 @default.
• W2891150435 cites W1992641410 @default.
• W2891150435 cites W1993655975 @default.
• W2891150435 cites W1995021919 @default.
• W2891150435 cites W2008272409 @default.
• W2891150435 cites W2009979957 @default.
• W2891150435 cites W2013074461 @default.
• W2891150435 cites W2026844104 @default.
• W2891150435 cites W2036364686 @default.
• W2891150435 cites W2036407232 @default.
• W2891150435 cites W2041763572 @default.
• W2891150435 cites W2042884255 @default.
• W2891150435 cites W2073057287 @default.
• W2891150435 cites W2079037765 @default.
• W2891150435 cites W2100501961 @default.
• W2891150435 cites W2127640492 @default.
• W2891150435 cites W2170398905 @default.
• W2891150435 cites W2170499994 @default.
• W2891150435 cites W2180820324 @default.
• W2891150435 cites W2295485010 @default.
• W2891150435 cites W2538798818 @default.
• W2891150435 cites W2548535751 @default.
• W2891150435 cites W2563651238 @default.
• W2891150435 cites W2563868550 @default.
• W2891150435 cites W2564335828 @default.
• W2891150435 cites W2566328109 @default.
• W2891150435 cites W2600030330 @default.
• W2891150435 cites W2605111297 @default.
• W2891150435 cites W2673129771 @default.
• W2891150435 cites W2754002398 @default.
• W2891150435 cites W2759823987 @default.
• W2891150435 cites W2772242838 @default.
• W2891150435 cites W2794659127 @default.
• W2891150435 doi "https://doi.org/10.3390/en11092320" @default.
• W2891150435 hasPublicationYear "2018" @default.
• W2891150435 type Work @default.
• W2891150435 sameAs 2891150435 @default.
• W2891150435 citedByCount "10" @default.
• W2891150435 countsByYear W28911504352019 @default.
• W2891150435 countsByYear W28911504352020 @default.
• W2891150435 countsByYear W28911504352021 @default.
• W2891150435 countsByYear W28911504352022 @default.
• W2891150435 countsByYear W28911504352023 @default.
• W2891150435 crossrefType "journal-article" @default.
• W2891150435 hasAuthorship W2891150435A5017132636 @default.
• W2891150435 hasAuthorship W2891150435A5052682393 @default.
• W2891150435 hasAuthorship W2891150435A5067130678 @default.
• W2891150435 hasAuthorship W2891150435A5073288335 @default.
• W2891150435 hasAuthorship W2891150435A5077048498 @default.
• W2891150435 hasBestOaLocation W28911504351 @default.
• W2891150435 hasConcept C109214941 @default.
• W2891150435 hasConcept C121332964 @default.
• W2891150435 hasConcept C127313418 @default.
• W2891150435 hasConcept C127413603 @default.
• W2891150435 hasConcept C135628077 @default.
• W2891150435 hasConcept C139210041 @default.
• W2891150435 hasConcept C140820882 @default.
• W2891150435 hasConcept C1633027 @default.
• W2891150435 hasConcept C17281054 @default.
• W2891150435 hasConcept C20381859 @default.
• W2891150435 hasConcept C207057113 @default.
• W2891150435 hasConcept C24890656 @default.
• W2891150435 hasConcept C2776529397 @default.
• W2891150435 hasConcept C2778449969 @default.
• W2891150435 hasConcept C2778705046 @default.
• W2891150435 hasConcept C2779126057 @default.
• W2891150435 hasConcept C28317120 @default.
• W2891150435 hasConcept C57879066 @default.
• W2891150435 hasConcept C66938386 @default.
• W2891150435 hasConcept C78519656 @default.
• W2891150435 hasConceptScore W2891150435C109214941 @default.
• W2891150435 hasConceptScore W2891150435C121332964 @default.
• W2891150435 hasConceptScore W2891150435C127313418 @default.
• W2891150435 hasConceptScore W2891150435C127413603 @default.
• W2891150435 hasConceptScore W2891150435C135628077 @default.
• W2891150435 hasConceptScore W2891150435C139210041 @default.
• W2891150435 hasConceptScore W2891150435C140820882 @default.
• W2891150435 hasConceptScore W2891150435C1633027 @default.
• W2891150435 hasConceptScore W2891150435C17281054 @default.
• W2891150435 hasConceptScore W2891150435C20381859 @default.
• W2891150435 hasConceptScore W2891150435C207057113 @default.
• W2891150435 hasConceptScore W2891150435C24890656 @default.

• next