Departament de Mecànica de Fluids

Enviaments recents

  • Magnetic Mars dust-removal technology 

    Arias Montenegro, Francisco Javier; Heras Jiménez, Salvador Augusto de las (springer-Verlag, 2019-02-04)
    Article
    Accés restringit per política de l'editorial
    Environmental data recorded by the Mars exploration rovers show that the martian dust is magnetic containing mostly the strong magnetic mineral magnetite ( Fe3O4 ). On the other hand, it is known that dust settling onto ...

  • Sandbraking. A technique for landing large payloads on Mars using the sands of Phobos 

    Arias Montenegro, Francisco Javier; Heras Jiménez, Salvador Augusto de las (2019-02)
    Article
    Accés restringit per política de l'editorial
    The basis of a novel braking technique by using the Phobos sands for landing large payloads on Mars is outlined. Here consideration is given to the utilization of the Phobos or Deimos regolith as material for aerobraking ...

  • 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)
    Text en actes de congrés
    Accés restringit per política de l'editorial
    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)
    Comunicació de congrés
    Accés restringit per política de l'editorial
    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 ...

  • Dryout and replenishment of bottom-heated saturated porous media with an overlying plain water layer 

    Carbonell Ventura, Montserrat; Virto Albert, Luis; Gámez Montero, Pedro Javier (Multidisciplinary Digital Publishing Institute, 2018-12-13)
    Article
    Accés obert
    The aim of this paper is to elucidate the influence of the physical properties of both phases—solid matrix and saturating liquid—of bottom-heated porous media with an overlying plain water layer. The dryout, the stability ...

  • Dynamic response of a NACA0009 hydrofoil under cavitation conditions 

    Escaler Puigoriol, Francesc Xavier; De La Torre, Oscar (2018)
    Text en actes de congrés
    Accés restringit per política de l'editorial
    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 ...

  • CFD study of the supercritical transesterification of triolein: Wall-to-fluid/particle-to fluid transport effects 

    Mekala, Samuel Jedidiah; Fontanals García, Alfred; Guardo Zabaleta, Alfredo de Jesús (2019-01-01)
    Article
    Accés restringit per política de l'editorial
    Transesterification of triglycerides is a process by which biodiesel is produced. Biodiesel is a sustainable alternative to petroleum diesel; hence, its efficient production is of significant importance. The transesterification ...

  • Simulation of high temperature superconductors and experimental validation 

    Olm Serra, Marc; Badia, Santiago; Martín Huertas, Alberto Francisco (2018-12)
    Article
    Accés restringit per política de l'editorial
    In this work, we present a parallel, fully-distributed finite element numerical framework to simulate the low-frequency electromagnetic behaviour of superconducting devices, which efficiently exploits high performance ...

  • A review of pzt patches applications in submerged systems 

    Presas, Alexandre; Luo, Yongyao; Wang, Zhengwei; Valentín Ruiz, David; Egusquiza Montagut, Mònica (Multidisciplinary Digital Publishing Institute (MDPI), 2018-07-12)
    Article
    Accés obert
    Submerged systems are found in many engineering, biological, and medicinal applications. For such systems, due to the particular environmental conditions and working medium, the research on the mechanical and structural ...

  • Full-Scale Wind Turbine Vibration Signature Analysis 

    Escaler Puigoriol, Francesc Xavier; Mebarki, Toufik (2018-12-07)
    Article
    Accés obert
    A sample of healthy wind turbines from the same wind farm with identical sizes and designs was investigated to determine the average vibrational signatures of the drive train components during normal operation. The units ...

  • Numerical study on the influence of acoustic natural frequencies on the dynamic behaviour of submerged and confined disk-like structures 

    Bossio, Matias; Valentín Ruiz, David; Presas Batlló, Alexandre; Ramos Martín, David; Egusquiza Estévez, Eduard; Valero Ferrando, Ma. del Carmen; Egusquiza Montagut, Mònica (2017-08)
    Article
    Accés restringit per política de l'editorial
    The dynamic response of disks has been deeply studied in the last years given that their dynamic characteristics present similarities with more complex disk-like structures used in real engineering applications, such as ...

  • Testing of self-similarity and helical symmetry in vortex generator flow simulations 

    Fernandez, Unai; Velte, Clara; Rethore, Pierre Elouan; Sorensen, Niels N.; Egusquiza Estévez, Eduard (2016-06)
    Article
    Accés obert
    Vortex generators (VGs) are used increasingly by the wind turbine industry as flow control devices to improve rotor blade performance. According to experimental observations, the vortices generated by VGs have previously ...

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