Enviaments recents

  • A simplified methodology to evaluate the design specifications of hydraulic components 

    Roquet, Pedro; Gámez Montero, Pedro Javier; Castilla López, Roberto; Raush Alviach, Gustavo Adolfo; Codina Macià, Esteban (Multidisciplinary Digital Publishing Institute, 2018-09-11)
    Article
    Accés obert
    The fatigue of a hydraulic component inherently varies due to various factors that can be divided into two categories: structural and load spectrum variability. The effects of both variabilities must be considered when ...
  • Ferrohydrodynamic capillary convection 

    Arias Montenegro, Francisco Javier; Heras Jiménez, Salvador Augusto de las (2018-09-30)
    Article
    Accés restringit per política de l'editorial
    In this work consideration is given to capillary convection on ferrofluids owing to the concentration gradient generated when a non-homogeneous magnetic field is applied. It is known that mass transfer along an interface ...
  • On inflatable drones for flight time enhancement with particular reference to spectator aerostation 

    Arias Montenegro, Francisco Javier (2018-08-30)
    Report de recerca
    Accés obert
    In this note consideration is given to drones - and specially quadcopters, endowed with inflatable and controllable airbags filled with helium which is stored in small and replaceable cartridges. The goal is the a flight ...
  • Three dimensional simulation of gerotor with deforming mesh by using OpenFOAM 

    Castilla López, Roberto; Gámez Montero, Pedro Javier; Raush Alviach, Gustavo Adolfo; Codina Macià, Esteban (2018)
    Text en actes de congrés
    Accés obert
    A new-born design and construction of a mini gerotor metering pump with trochoidal-teeth is presented. The technical innovation in this new-born design is to study the fluid dynamic effects of interteeth and lateral ...
  • On the thermal cyclic precipitation of aqueous solutions for heat powered cycles in space 

    Arias Montenegro, Francisco Javier (American Institute of Aeronautics and Astronautics (AIAA), 2018)
    Text en actes de congrés
    Accés restringit per política de l'editorial
    Consideration is given to a novel process for heat transport, mass transport, thermal storage and mechanical transformation of heat based in the cyclic precipitation of aqueous solutions when an input of heat is applied ...
  • CO2-cushion vehicle for Mars. An alternative locomotion for exploration rovers 

    Arias Montenegro, Francisco Javier (American Institute of Aeronautics and Astronautics (AIAA), 2018)
    Text en actes de congrés
    Accés restringit per política de l'editorial
    In this work, consideration is given to ad hoc cushion vehicles for Mars. On Earth, air cushion vehicles use pressurized atmospheric air by means of powerful blowers that pump the air into a chamber, however, for Mars -at ...
  • Magnetic traveling waves induced by mini-coils for sweeping dust of Mars solar arrays 

    Arias Montenegro, Francisco Javier (American Institute of Aeronautics and Astronautics (AIAA), 2018)
    Text en actes de congrés
    Accés restringit per política de l'editorial
    In this work consideration is given to dust removal from surface of Mars solar arrays by harnessing the magnetic properties of the dust. Here, it is speculated a possible technique by which localized and properly spaced ...
  • A method of attaining high pressurized vessels in space, the Moon and with particular reference to Mars 

    Arias Montenegro, Francisco Javier (2018)
    Text en actes de congrés
    Accés restringit per política de l'editorial
    In this work consideration is given for a technological method of attaining high pressurized vessels by a solidification-sublimation thermal cycle of CO2 without the need of compressors or mechanical devices prone to ...
  • Slingshot effect for ocean wave energy conversion 

    Arias Montenegro, Francisco Javier; Heras Jiménez, Salvador Augusto de las (ICOE (International Conference on Ocean Energy), 2018)
    Text en actes de congrés
    Accés restringit per política de l'editorial
    Slingshot effect (SE) and its significance with regard to ocean wave energy conversion is discussed. It is shown that owing to the huge inertia which can be transported by the ocean wave plus its periodicity, then a movable ...
  • Resuspension and control of reservoir sediments by surface waves and point absorbers 

    Arias Montenegro, Francisco Javier; Heras Jiménez, Salvador Augusto de las (International Association for Hydro-Environment Engineering and Research (IAHR), 2018)
    Text en actes de congrés
    Accés restringit per política de l'editorial
    This work is intended to investigate the deliberate generation of mild waves on the surface of reservoirs and the use of a farm of point absorbers, floating buoys or akin technology, to convert the energy transported by ...
  • Numerical study on the dynamic behavior of a francis turbine runner model with a crack 

    Zhang, Ming; Valentín Ruiz, David; Valero Ferrando, Ma. del Carmen; Egusquiza Montagut, Mònica; Zhao, Weiqiang (2018-01-01)
    Article
    Accés obert
    Crack appearance in the blade is the most common type of fatigue damage in Francis turbines. However, it is sometimes difficult to detect cracks in time using the current monitoring system, even when they are very large. ...
  • On resuspension and control of reservoir sediments by surface waves and point absorbers 

    Arias Montenegro, Francisco Javier (Elsevier, 2018-07-27)
    Article
    Accés restringit per política de l'editorial
    Consideration is given to a novel approach for resuspension and control of sediment in reservoirs which nowadays and after more than six decades of research remains as the most serious technical problem faced by dam industry. ...

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