L'activitat científica del grup està centrada en l'àmbit de les Enginyeries Mecànica i Aeroespacial amb l'objectiu d'estudiar el disseny i optimització d'equips i sistemes tèrmics i aerodinàmics, això com millorar la seva eficiència. Per a la realització d'aquests estudis, el grup utilitza tècniques de simulació numèrica avançada, incloent tècniques de supercomputació per a les quals el grup compta amb especialistes d'alt nivell, així com també fa servir tècniques experimentals.

Recent Submissions

  • Fluid dynamics and heat transfer in the wake of a sphere 

    Rodríguez Pérez, Ivette María; Lehmkuhl, Oriol; Soria Guerrero, Manel; Gómez, Samuel; Domínguez Pumar, Manuel; Kowalski, Lukasz (2019-04)
    Article
    Restricted access - publisher's policy
    Direct numerical simulation and large-eddy simulation have been performed for a heated sphere at Reynolds numbers of $Re=1000$ and $Re=10^4$, respectively. The Prandtl number for both simulations has been $Pr=0.7$. ...
  • Active flow control for external aerodynamics: from micro air vehicles to a full aircraft in stall 

    Lehmkuhl, Oriol; Lozano-Durán, Adrian; Rodríguez Pérez, Ivette María (Institute of Physics (IOP), 2020-04-01)
    Article
    Open Access
    We investigate the aerodynamic performance of active flow control of airfoils and wings using synthetic jets with zero net-mass flow. The study is conducted via wall-resolved and wall-modeled large-eddy simulation using ...
  • Wakes and instabilities of static and freely vibrating cylinders 

    Rodríguez Pérez, Ivette María; Lehmkuhl, Oriol; Pastrana Maldonado, Daniel; Cajas García, Juan Carlos; Houzeaux, Guillaume (Springer, 2019)
    Conference report
    Restricted access - publisher's policy
    The flow around static and freely vibrating cylinders are of interest in understanding different phenomena encountered in many practical applications.
  • Effects of the actuation on the boundary layer of an airfoil at Reynolds Number Re = 60000 

    Rodríguez Pérez, Ivette María; Lehmkuhl, Oriol; Borrell Pol, Ricard (Springer-Verlag, 2020-05-29)
    Article
    Restricted access - publisher's policy
    Synthetic (zero net mass flux) jets are an active flow control technique to manipulate the flow field in wall-bounded and free-shear flows. The present paper focuses on the role of the periodic actuation mechanisms on the ...
  • Exploring the performance of a miniature 3D wind sensor under extreme martian winds up to the dust devil scale 

    Domínguez Pumar, Manuel; Kowalski, Lukasz; Jiménez Serres, Vicente; Rodríguez Pérez, Ivette María; Soria Guerrero, Manel (2019)
    Conference report
    Open Access
    The objective of this paper is to explore the performance of a miniature 3D spherical wind sensor for Mars atmosphere, working under extreme wind speeds, up to the Dust Devil scale. The experimental campaign has been made ...
  • 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 ...
  • ³Cat-4 Mission: a 1-unit cubesat for earth observation with a L-band radiometer and a GNSS-reflectometer using software defined radio 

    Ruiz De Azúa Ortega, Juan Adrián; Muñoz Martin, Joan Francesc; Fernandez Capon, Lara Pilar; Badia Ballús, Marc; Llaveria Godoy, David; Diez Garcia, Carlos; Aguilella, Andrea; Pérez Portero, Adrián; Milián, O.; Sobrino Hidalgo, Marco; Navarro Trastoy, Ángel; Lleó, H.; Sureda Anfres, Miquel; Soria Guerrero, Manel; Calveras Augé, Anna M.; Camps Carmona, Adriano José (2019)
    Conference lecture
    Restricted access - publisher's policy
    Global Navigation Satellite System Reflectometry and L-band microwave radiometry have been used for soil moisture, biomass, and cryosphere studies. Combining both technologies in a low-power and cost-effective solution ...
  • 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 ...

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