Browsing by Author "Escaler Puigoriol, Francesc Xavier"
Now showing items 1-20 of 157
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A new barotropic model for simulating compressible cavitating flows
(2024-11)
Article
Open AccessThis paper introduces a new barotropic model integrated into a general pressure-based solver for the comprehensive simulation of compressible cavitating flows. This new model can predict the phase transition between liquid ... -
Added mass effects of attached cavitation on the blades of a Francis runner
(2016)
Conference report
Open Access -
Added mass effects on a Francis turbine runner with attached blade cavitation
(Multidisciplinary Digital Publishing Institute (MDPI), 2019-06-11)
Article
Open AccessTo have a safe structural design, an analysis of the dynamic behavior of a Francis turbine runner with consideration of the added mass e ects of surrounding water is necessary during design phase. Both in design and at o ... -
AFC system experimentally investigated on a 10 MW Kaplan prototype turbine and a 200 MW Francis prototype turbine
(2024-09-09)
Research report
Open AccessThe Active Flow Control (AFC) system is a multifaceted integration of distinct subsystems, including the Injection of Pulsating Momentum (IPM), Injection of Continuous Momentum (ICM), Structural Health Monitoring System ... -
AFC system validated on a model turbine
(2024-09-09)
Research report
Open AccessThe Active Flow Control (AFC) system is composed of various subsystems, encompassing the Injection of Pulsating Momentum (IPM), Injection of Continuous Momentum (ICM), Structural Health Monitoring System (SHM), and the ... -
ALBA cooling system 1D model and thermo-fluid dynamic simulations using Flowmaster® software
(2014-04-30)
Research report
Restricted access - confidentiality agreementThe Center for Industrial Diagnostics and Fluid Dynamics (CDIF) is a R&D center within the Technical University of Catalonia (UPC). It belongs to the TECNIO network, a technology transfer initiative from ACC10, the Technology ... -
ALBA Cooling System Upgrade: Thermal Hydraulic Numerical Simulations
(2014)
Conference lecture
Restricted access - publisher's policy -
ALBA synchrotron cooling system evaluation using flowmaster®
(2015-06-22)
Article
Open AccessALBA is a 3rd generation Synchrotron Light facility in Barcelona, Spain. Made up of a complex network of electron accelerators that produce synchrotron light, it allows for the visualization of the atomic structure of ... -
Analysis of chatter marks damage on the Yankee dryer surface of a tissue machine
(Elsevier, 2012-03-08)
Article
Restricted access - publisher's policyA tissue machine suffering from Yankee chatter marks has been experimentally investigated. A series of vibration measurements during normal operation at various Yankee speeds on both the creping and the cleaning blade ... -
Assessment of fiber bragg grating sensors for monitoring induced strains on the draft tube cone of hydraulic turbines
(Institute of Physics (IOP), 2023)
Conference report
Open AccessIn hydraulic turbines, several flow instabilities can take place inside the draft tube cone during off-design and transient operating conditions such as the rotating vortex rope which can severely damage the structure if ... -
Assessment of fiber Bragg grating sensors for monitoring shaft vibrations of hydraulic turbines
(Multidisciplinary Digital Publishing Institute (MDPI), 2023-07-26)
Article
Open AccessThe 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
(Multidisciplinary Digital Publishing Institute, 2023-02-23)
Article
Open AccessThe 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
(Engineering Applications of Computational Fluid Mechanics, 2019-11-26)
Article
Open AccessThe 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
(2018)
Conference report
Open AccessThis 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
(Institute of Physics (IOP), 2021)
Conference report
Open AccessThe 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
(2018-10-10)
Article
Open AccessIn 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
(2012)
Conference lecture
Restricted access - publisher's policy -
Comparativa entre el rodete original y el modificado de la CH Carcavilla
(2021-07-02)
Research report
Restricted access - confidentiality agreementPresentar los resultados de la simulación con el nuevo borde de salida de los álabes -
Comparative performance assessment between incompressible and compressible solvers to simulate a cavitating wake
(Multidisciplinary Digital Publishing Institute (MDPI), 2024-09-18)
Article
Open AccessTo study the effects of fluid compressibility on the dynamics of a cavitating vortex street flow in a regime where the vortex shedding frequency increases as a result of the cavitation increase, the cavitating wake behind ... -
Computational fluid dynamics modeling of impinging gas-jet systems: I. Assessment of eddy viscosity models
(2005-07-15)
Article
Restricted access - publisher's policyComputational 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 ...
