Recent Submissions

  • Numerical investigation on the flow around a square cylinder with an upstream splitter plate at low Reynolds numbers 

    An, Bo; Bergadà Granyó, Josep Maria; Mellibovsky Elstein, Fernando; Sang, W.M.; Xi, C. (2020-03-13)
    Article
    Restricted access - publisher's policy
    The present study focuses on the flow over a 2D square cylinder with a plate placed in front of it. An in-house code using the lattice Boltzmann method was employed for all the simulations presented. Few cases were simulated ...
  • Fluidic oscillators, the effect of some design modifications 

    Baghaei, Masoud; Bergadà Granyó, Josep Maria (Multidisciplinary Digital Publishing Institute, 2020-03-20)
    Article
    Open Access
    The number of applications where fluidic oscillators are expected to be used in the future, is raising sharply, then their ability of interacting with the boundary layer to modify forces on bluff bodies, enhancing heat ...
  • New applications of numerical simulation based on lattice Boltzmann method at high Reynolds numbers 

    An, Bo; Bergadà Granyó, Josep Maria; Mellibovsky Elstein, Fernando; Sang, WM (2020-03-15)
    Article
    Restricted access - publisher's policy
    In order to study the flow behavior at high Reynolds numbers, two modified models, known as the multiple-relaxation-time lattice Boltzmann method (MRT-LBM) and large-eddy-simulation lattice Boltzmann method (LES-LBM), have ...
  • Towards a better understanding of wall-driven square cavity flows using the Lattice Boltzmann method 

    An, Bo; Mellibovsky Elstein, Fernando; Bergadà Granyó, Josep Maria; Sang, WM (2020-06-01)
    Article
    Restricted access - publisher's policy
    Wall-driven flow in square cavities has been studied extensively, yet it appears some main flow characteristics have not been fully investigated. Previous research on the classic lid-driven cavity (S1) flow has produced ...
  • On the formation of Taylor-Görtler structures in the vortex induced vibration phenomenon 

    Pastrana Maldonado, Daniel; Rodríguez Pérez, Ivette María; Cajas García, Juan Carlos; Lehmkuhl, Oriol; Houzeaux, Guillaume (2020-06-01)
    Article
    Restricted access - publisher's policy
    In this work, the three-dimensional structure of the boundary layer in the context of the vortex induced vibration of a circular cylinder is presented and investigated for the first time. Large-eddy simulations of a low ...
  • Noise radiated by an open cavity at low Mach number: Effect of the cavity oscillation mode 

    Martín Navarrete, Rocío; Soria Guerrero, Manel; Lehmkuhl, Oriol; Duben, Alexey; Gorobets, Andrey (2019-09-17)
    Article
    Open Access
    The present work focuses on the study of noise generation and radiation of an infinite open three-dimensional cavity at low Mach number with laminar upstream conditions that is of interest to understand noise generation ...
  • Analysis of the forces driving the oscillations in 3D fluidic oscillators 

    Baghaei, Masoud; Bergadà Granyó, Josep Maria (2019-12-11)
    Article
    Open Access
    One of the main advantages of fluidic oscillators is that they do not have moving parts, which brings high reliability whenever being used in real applications. To use these devices in real applications, it is necessary ...
  • Saturn atmospheric dynamics one year after Cassini: Long-lived features and time variations in the drift of the Hexagon 

    Hueso, Ricardo; Sánchez Lavega, Agustín; Rojas, Jose Félix; Simon, Amy A.; Barry, Trevor; del Rio Gaztelurrutia, Teresa; Antuñano, Arrate; Sayanagi, Kunio; Delcroix, M.; Fletcher, Leigh N.; García Melendo, Enrique José; Pérez Hoyos, Santiago; Blalock, J; Colas, Françoise; Gómez Forrellad, Josep Maria; Gunnarson, J. L.; Peach, D.; Wong, Michael (2020-01-15)
    Article
    Restricted access - publisher's policy
    We examine Saturn's atmospheric dynamics with observations in the visible range from ground-based telescopes and Hubble Space Telescope (HST). We present a detailed analysis of observations acquired during 2018 obtaining ...
  • A complex storm system in Saturn's north polar atmosphere in 2018 

    Sánchez Lavega, Agustín; García Melendo, Enrique José; Legarreta, Jon J.; Hueso, Ricardo; del Rio Gaztelurrutia, Teresa; Sanz-Requena, Jose Francisco; Pérez Hoyos, Santiago; Simon, Amy A.; Wong, Michael; Soria Guerrero, Manel; Gómez Forrellad, Josep Maria; Barry, Trevor; Delcroix, Marc; Sayanagi, Kunio; Blalock, J; Gunnarson, J. L.; Dyudina, Uliana; Ewald, S. (Springer Nature, 2019-10-21)
    Article
    Open Access
    Saturn’s convective storms usually fall in two categories. One consists of mid-sized storms ~2,000¿km wide, appearing as irregular bright cloud systems that evolve rapidly, on scales of a few days. The other includes the ...
  • The lid-driven right-angled isosceles triangular cavity flow 

    An, Bo; Bergadà Granyó, Josep Maria; Mellibovsky Elstein, Fernando (2019-09-25)
    Article
    Restricted access - publisher's policy
    We employ lattice Boltzmann simulation to numerically investigate the two-dimensional incompressible flow inside a right-angled isosceles triangular enclosure driven by the tangential motion of its hypotenuse. While the ...
  • A review study on the modeling of high-temperature solar thermal collector systems 

    Hachicha, Ahmed A.; Yousef, Bashria A.A.; Said, Zafar; Rodríguez Pérez, Ivette María (2019-09-01)
    Article
    Restricted access - publisher's policy
    Concentrated solar power technologies are gaining more attention in the last two decades in order to replace the conventional power technologies and reduce their environmental impact. Among the developed concentrating ...
  • On the exploitation of differential aerodynamic lift and drag as a means to control satellite formation flight 

    Traub, Constantin; Romano, Francesco; Binder, Tilman; García-Almiñana, Daniel; Rodríguez Donaire, Silvia; Sureda Anfres, Miquel (springer-Verlag, 2019-05-27)
    Article
    Restricted access - publisher's policy
    For a satellite formation to maintain its intended design despite present perturbations (formation keeping), to change the formation design (reconfiguration) or to perform a rendezvous maneuver, control forces need to be ...

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