Exploració per autor "Escaler Puigoriol, Francesc Xavier"
Ara es mostren els items 7-26 de 144
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Assessment of fiber Bragg grating sensors for monitoring shaft vibrations of hydraulic turbines
Sánchez Botello, Xavier; Roig Bauzà, Rafel; Torre Rodríguez, Óscar de la; Madrigal, Javier; Sales, Salvador; Escaler Puigoriol, Francesc Xavier (Multidisciplinary Digital Publishing Institute (MDPI), 2023-07-26)
Article
Accés obertThe structural dynamic response of hydraulic turbines needs to be continuously monitored to predict incipient failures and avoid catastrophic breakdowns. Current methods based on traditional off-board vibration sensors ... -
Assessment of novel modal testing methods for structures rotating in water
Roig Bauzà, Rafel; Sánchez Botello, Xavier; Escaler Puigoriol, Francesc Xavier (Multidisciplinary Digital Publishing Institute, 2023-02-23)
Article
Accés obertThe current paper presents an investigation into novel modal testing methods applied to a disk–shaft structure at different rotating speeds in air and water. The structure was excited using three different methods: an ... -
Assessment of RANS turbulence models and Zwart cavitation model empirical coefficients for the simulation of unsteady cloud cavitation
Geng, Linlin; Escaler Puigoriol, Francesc Xavier (Engineering Applications of Computational Fluid Mechanics, 2019-11-26)
Article
Accés obertThe numerical simulation of unsteady cavitation flows is sensitive to the selected models and associated parameters. Consequently, three Reynolds Average Navier-Stokes (RANS) turbulence models and the Zwart cavitation model ... -
Assessment of remote cavitation detection methods with flow visualization in a full scale francis turbine
Escaler Puigoriol, Francesc Xavier; Vilberg, Ingrid; Ekanger, Jarle; Francke, H; Kjeldsen, Morten (2018)
Text en actes de congrés
Accés obertThis paper describes the experimental investigations carried out in the Francis turbine at Svorka power plant operated by Statkraft in Norway. The unit, with a head of 260 m, can deliver a maximum output load of 25 MW. The ... -
Assessment of turbulence models for the prediction of Bénard- Von Kármán vortex shedding behind a truncated hydrofoil in cavitation conditions
Chen, Jian; Geng, Linlin; Torre Rodríguez, Óscar de la; Escaler Puigoriol, Francesc Xavier (Institute of Physics (IOP), 2021)
Text en actes de congrés
Accés obertThe transient cavitating flow in the wake of a hydrofoil at zero incidence angle has been simulated using a homogeneous mixture cavitation mass transfer model combined with both Reynolds Average Navier-Stokes (RANS) and ... -
Axisymmetric vibrations of a circular Chladni plate in air and fully submerged in water
Escaler Puigoriol, Francesc Xavier; De la Torre Rodriguez, Oscar (2018-10-10)
Article
Accés obertIn this study, experimental and numerical analyses were performed to determine the effects of water loading on the axisymmetric modes of vibration of a circular plate. The plate was harmonically excited at its centre through ... -
Cavitation intensity measured on a Naca 0015 hydrofoil with various gas contents
Ekanger, Jarle V.; Kjeldsen, Morten; Escaler Puigoriol, Francesc Xavier; Kawakami, Ellison; Arndt, Roger E. A. (2012)
Comunicació de congrés
Accés restringit per política de l'editorial -
Comparativa entre el rodete original y el modificado de la CH Carcavilla
Escaler Puigoriol, Francesc Xavier (2021-07-02)
Report de recerca
Accés restringit per acord de confidencialitatPresentar los resultados de la simulación con el nuevo borde de salida de los álabes -
Computational fluid dynamics modeling of impinging gas-jet systems: I. Assessment of eddy viscosity models
Coussirat Núñez, Miguel Gustavo; van Beeck, J; Mestres Ridge, Marc; Egusquiza Estévez, Eduard; Buchlin, J-M; Escaler Puigoriol, Francesc Xavier (2005-07-15)
Article
Accés restringit per política de l'editorialComputational fluid dynamics plays an important role in engineering design. To gain insight into solving problems involving complex industrial flows, such as impinging gas-jet systems (IJS), an evaluation of several eddy ... -
Desarrollo de conocimiento para la mejora del mantenimiento predictivo en el sector eólico
Escaler Puigoriol, Francesc Xavier (2012)
Comunicació de congrés
Accés obert -
Diagnóstico vibratorio del grupo 2 de la central hidráulica de ip
Escaler Puigoriol, Francesc Xavier; Jou Santacreu, Esteban (2021-11-08)
Report de recerca
Accés restringit per acord de confidencialitat -
Dynamic analysis of Francis Runners-Experiment and numerical simulation
Lais, Stefan; Qwenguei, Liang; Henggeler, Urs; Weiss, Thomas; Escaler Puigoriol, Francesc Xavier; Egusquiza Estévez, Eduard (2009-10-01)
Article
Accés restringit per política de l'editorial -
Dynamic response analysis of a reduced scale Kaplan turbine model operating in propeller mode
Escaler Puigoriol, Francesc Xavier; Sánchez Botello, Xavier; Roig Bauzà, Rafel; Torre Rodríguez, Óscar de la; Mulu, Berhanu; Högström, Carl-Maikel (IOP Publishing, 2022)
Text en actes de congrés
Accés obertIn the frame of the AFC4Hydro H2020 research project, an extensive measurement campaign has been carried out on a reduced scale Kaplan turbine model at the Vattenfall Research and Development facility in Älvkarleby, Sweden. ... -
Dynamic response of a NACA0009 hydrofoil under cavitation conditions
Escaler Puigoriol, Francesc Xavier; De la Torre Rodriguez, Oscar (2018)
Text en actes de congrés
Accés restringit per política de l'editorialThe dynamic response of an hydraulic machine is greatly affected by the water due to the added mass effect . However, the presence of cavitation can change the modal response of the coupled fluid - structure system because ... -
Effects of attached blade cavitation on the natural frequencies of a Francis runner
Escaler Puigoriol, Francesc Xavier; Huang, Xinxing (Shanghai University Press, 2019)
Text en actes de congrés
Accés obertEffects of attached blade cavitation on the natural frequencies of a Francis runner -
Estudio del comportamiento vibratorio del tren de potencia de un aerogenerador
Escaler Puigoriol, Francesc Xavier (2011-09-08)
Report de recerca
Accés restringit per acord de confidencialitat -
Estudio fluidodinámico de la modificación del chorro del desagüe de la presa de la Almendra
Escaler Puigoriol, Francesc Xavier (2022-10-10)
Report de recerca
Accés restringit per acord de confidencialitat -
Estudio preliminar del comportamiento vibratorio de los aerogeneradores 9, 30 y 44
Escaler Puigoriol, Francesc Xavier (2012-07-25)
Report de recerca
Accés restringit per acord de confidencialitat -
Evaluación de mediciones vibratorias realizadas en la CH Carcavilla el 29 de Abril de 2021
Escaler Puigoriol, Francesc Xavier; Jou Santacreu, Esteban (2021-06-01)
Report de recerca
Accés restringit per acord de confidencialitat -
Evaluación del efecto del cambio de geometría del borde de entrada del álabe de la CH Carcavilla con la modificación V3 60
Escaler Puigoriol, Francesc Xavier (2021-06-27)
Report de recerca
Accés restringit per acord de confidencialitatSimular la modificación del borde de entrada de los álabes