Ponències/Comunicacions de congressos

Recent Submissions

  • Active flow control on SD7003 airfoil using synthetic jets 

    Tousi, Navid Monshi; Bergadà Granyó, Josep Maria; Rodríguez Pérez, Ivette María (2019)
    Conference report
    Restricted access - publisher's policy
    The present paper focuses on applying the Active Flow Control (AFC) technology on the Selig-Donovan 7003 (SD7003) airfoil at Reynolds number 60,000, the idea is to employ synthetic jets in order to modify the lift and drag ...

  • CFD study of the effects of ingested bodies on the RSI of hydraulic turbines 

    Guardo Zabaleta, Alfredo de Jesús; Fontanals García, Alfred; Valero Ferrando, Ma. del Carmen; Egusquiza Estévez, Eduard (2018)
    Conference report
    Open Access
    The ingestion of large bodies in hydraulic turbines can produce blockage in the runner and/or the distributor, modifying the amplitude and uniformity of pressure pulsations and generating large ...

  • Design of a global maximum power point tracking (GMPPT) for PV array based on precise PV shadow modem 

    García-Gutiérrez, Luis; Bressan, Michael; Jiménez, Fernando; Heras Jiménez, Salvador Augusto de las; Alonso, Corinne (Institute of Electrical and Electronics Engineers (IEEE), 2018)
    Conference lecture
    Open Access
    This paper presents the modeling of a photovoltaic system under complex shading conditions. The approach integrates a complete PV array with each cell modeled separately including shadow coefficients depending on a ...

  • Effects of attached blade cavitation on the natural frequencies of a Francis runner 

    Escaler Puigoriol, Francesc Xavier; Huang, Xinxing (Shanghai University Press, 2019)
    Conference report
    Open Access
    Effects of attached blade cavitation on the natural frequencies of a Francis runner

  • Unsteady numerical simulation of suction side leading edge cavitation in a Francis turbine runner 

    Chen, Jian; Escaler Puigoriol, Francesc Xavier (Shanghai University Press, 2019)
    Conference report
    Open Access
    Cavitation appearance within the runner of the water turbines is a common problem that induces vibrations and provokes the erosion of the blades. Although many investigations have been carried out in simple configurations ...

  • Recommendations for the simulation of unsteady cloud cavitation around 2D hydrofoils with density corrected model 

    Geng, Linlin; Escaler Puigoriol, Francesc Xavier (Shanghai University Press, 2019)
    Conference report
    Restricted access - publisher's policy
    Numerical simulationresultsof unsteady cavitation flowson 2D hydrofoilsdependon theselectionof the turbulence and cavitationmodelsas well as the valueof the exponential coefficient nin the Reboud’scorrection.The aim of the ...

  • Numerical simulation of cavitation in a Francis runner under different operating conditions 

    Mundet, Agustí; Escaler Puigoriol, Francesc Xavier; Hidalgo, Víctor Hugo (Shanghai University Press, 2019)
    Conference report
    Open Access
    The behavior of suction side leading edge cavitation on the runner blades of the GAMM Francis turbine has been investigated under different operating conditions at the best efficiency point (BEP) and at off-design operations. ...

  • Mapping Venturi cavitation in a new closed loop facility devoted to study thermodynamic effects 

    Bermejo Plana, David; Escaler Puigoriol, Francesc Xavier; Ruiz Mansilla, Rafael (Shanghai University Press, 2019)
    Conference report
    Restricted access - publisher's policy
    The influence of cavitation in water heating processes is still an unknown issue. To develop such knowledge, Universitat Politècnica de Catalunya-BarcelonaTech (UPC), in collaboration with the Spanish environmental engineering ...

  • Medidas sísmicas instantáneas del fondo marino 

    Roset Juan, Francesc Xavier; Trullols Farreny, Enric; Prat Farran, Joana d'Arc; Río Fernandez, Joaquín del; Massana Hugas, Immaculada; Carbonell Ventura, Montserrat; Toma, Daniel (2018)
    Conference report
    Open Access
    El proyecto INMARSIS ha desarrollado y desplegado un equipo marino anclado que suministra datos si´smicos en tiempo real. El sistema se basa en un sismo´metro submarino, una boya de superficie y un cable de amarre que los ...

  • Influence of draft tube water injection system on cavitation behaviour in a full-scale Francis turbine with visual access 

    Vilberg, Ingrid; Kjeldsen, Morten; Escaler Puigoriol, Francesc Xavier; Ekanger, Jarle; Nielsen, TK (2018)
    Conference report
    Restricted access - publisher's policy
    This paper describes the results of a comprehe nsive and ongoing project to control unsteady fluid - dynamic behaviour and associated effects at Svorka hydro power plant (25 MW, 260 m, 600 rpm), operated by Statkraft in ...

  • Numerical simulation of the cavitation micro-jet velocity and erosion on a plane-convex hydrofoil with semicylindrical obstacle 

    Hidalgo, V; Luo, X; Escaler Puigoriol, Francesc Xavier; Valencia, E.; Cruz, P (2018)
    Conference lecture
    Restricted access - publisher's policy
    The present study deals with the numerical study of the cavitation micro–jet velocity and erosion on a plane–convex hydrofoil with semicylindrical obstacle, which induces a big cluster of cavities with a strong erosive ...

  • Dynamic response of a NACA0009 hydrofoil under cavitation conditions 

    Escaler Puigoriol, Francesc Xavier; De la Torre Rodriguez, Oscar (2018)
    Conference report
    Restricted access - publisher's policy
    The 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 ...

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