Enviaments recents

  • On the dynamics of the turbulent flow past a three-element wing 

    Montalà Sales, Ricard; Lehmkuhl Barba, Oriol; Rodríguez Pérez, Ivette María (American Institute of Physics (AIP), 2024-02)
    Article
    Accés obert
    A comprehensive analysis of the unsteady flow dynamics past the 30P30N three-element high lift wing is performed by means of large eddy simulations at different angles of attack (a¿=¿5°, 9°, and 23°) and at a Reynolds ...
  • On the dynamics of the turbulent flow past a three-element wing 

    Montalà Sales, Ricard; Lehmkuhl Barba, Oriol; Rodríguez Pérez, Ivette María (2024-02-12)
    Article
    Accés obert
    A comprehensive analysis of the unsteady flow dynamics past the 30P30N three-element high lift wing is performed by means of large eddy simulations at different angles of attack (AoA=5°, 9°, and 23°) and at a Reynolds ...
  • Evaluation of TCP congestion control algorithms with traffic control policies in a PEP-based geosynchronous satellite scenario 

    Ramos López, Daniel; Esparza Martín, Óscar; Mata Diaz, Jorge; Alins Delgado, Juan José (Elsevier, 2024-02-01)
    Article
    Accés obert
    Much work has been done in recent years comparing TCP variants in many scenarios, including the satellite one. Some of these studies were carried out with the ns-2 and ns-3 simulators, which may give a good idea of the ...
  • Artificial compressibility method for high-pressure transcritical fluids at low Mach numbers 

    Abdellatif, Ahmed Mohammed Abdelfattah; Ventosa Molina, Jordi; Grau Barceló, Joan; Torres Cámara, Ricardo; Jofre Cruanyes, Lluís (Elsevier, 2024-02-15)
    Article
    Accés obert
    Supercritical fluids possess unique properties that makes them relevant in various scientific and engineering applications. However, the experimental investigation of these fluids is challenging due to the high pressures ...
  • Self-induced large-scale motions in a three-dimensional diffuser 

    Miró Jané, Arnau; Eiximeno Franch, Benet; Rodríguez Pérez, Ivette María; Lehmkuhl Barba, Oriol (Springer, 2023-09-14)
    Article
    Accés obert
    A direct numerical simulation of a three-dimensional diffuser at Reynolds number Re = 10,000 (based on inlet bulk velocity) has been performed using a low-dissipation finite element code. The geometry chosen for this work ...
  • Aspect ratio influence on the vortex induced vibrations of a pivoted finite height cylinder at low Reynolds number 

    Cajas García, Juan Carlos; Rodríguez Pérez, Ivette María; Salcedo Álvarez, Erick; Lehmkuhl Barba, Oriol; Houzeaux, Guillaume; Treviño Treviño, César (2023-08-10)
    Article
    Accés obert
    The effect of the aspect ratio on the vortex induced vibrations (VIV) of a pivoted finite length circular cylinder is investigated. A fixed value of the Reynolds number Re = 100 with four values of the aspect ratio ...
  • Hybrid computation of the aerodynamic noise radiated by the wake of a subsonic cylinder 

    Eiximeno Franch, Benet; Tur Monge, Carlos; Lehmkuhl Barba, Oriol; Rodríguez Pérez, Ivette María (Multidisciplinary Digital Publishing Institute (MDPI), 2023-08-21)
    Article
    Accés obert
    The noise radiated by the flow around a cylinder in the subcritical regime at 𝑅𝑒𝐷=1×104 and at a subsonic Mach number of 𝑀=0.5 is here studied. The aerodynamic sound radiated by a cylinder has been studied with a ...
  • Assessing the usability of two declarative programming languages to model geometric events 

    Llopis, Marcel; Franch Gutiérrez, Javier; Soria Guerrero, Manel (American Institute of Aeronautics and Astronautics (AIAA), 2023-09)
    Article
    Accés obert
    When space missions plan scientific actions for robotic spacecraft to execute, they frequently do so within a geometric context called an opportunity. Although there are geometric software libraries that let users write ...
  • Visual analysis of the impact of periodic wakes on the pressure side of a turbine blade 

    Nsonga, Baldwin; Ventosa Molina, Jordi; Koschichow, Denis; Fröhlich, Jochen; Gumhold, Stefan; Scheuermann, Gerik (2023-06-01)
    Article
    Accés obert
    Turbines are core components in jet engines for flight propulsion, power plants, and other important energy conversion processes. They are composed of successive rows of blades so that wakes of upstream blades reach ...
  • An assessment of different relay network topologies to improve Earth-Mars communications 

    Betriu Roure, Paula; Soria Guerrero, Manel; Gutiérrez Cabello, Jordi; Barlabe Dalmau, Antoni (2023-04)
    Article
    Accés obert
    The future of deep space communications encompasses a challenging situation where the current facilities used to communicate with different spacecraft may become saturated as a result of an increasing number of missions ...
  • Towards a quantitative understanding of Robert's Rising Thermal Bubble as a benchmark for 3D atmospheric codes 

    Andrés Carcasona, Marc; Soria Guerrero, Manel; García Melendo, Enrique José; Miró Jané, Arnau (American Meteorological Society, 2023-02-01)
    Article
    Accés obert
    Robert’s rising thermal bubble (RRTB) is a benchmark case used to assess atmospheric models. In this paper, RRTB is further studied both using an analytical and a numerical approach, improving to a greater extent the ...
  • Deep reinforcement learning for flow control exploits different physics for increasing Reynolds number regimes 

    Varela Martínez, Pau; Suárez Morales, Pol; Alcántara Ávila, Francisco; Miró Jané, Arnau; Rabault, Jean; Font García, Bernat; García Cuevas, Luis Miguel; Lehmkuhl Barba, Oriol; Vinuesa Moltiva, Ricardo (Multidisciplinary Digital Publishing Institute (MDPI), 2022-12-02)
    Article
    Accés obert
    The increase in emissions associated with aviation requires deeper research into novel sensing and flow-control strategies to obtain improved aerodynamic performances. In this context, data-driven methods are suitable for ...

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