Microtech Lab applies the power of miniaturization to create revolutionary micro/nanofluidic new devices or out perform their larger predecessors in the different engineering fields such as industry, energy, health and communications.

Recent Submissions

  • Optimization of synthetic jet actuation on a SD7003 airfoil in stall conditions 

    Monshi Tousi, Navid; El Mansy, Reda; Mellibovsky Elstein, Fernando; Bergadà Granyó, Josep Maria (2022)
    Conference report
    Open Access
    We optimise a set of Synthetic Jet (SJ) Active Flow Control (AFC) parameters on a SD7003 airfoil in order to maximise lift and aerodynamic efficiency. 2D-RANS with the Spallart Almaras (SA) turbulence model is employed in ...
  • Aerodynamic performances and wake topology past a square cylinder in the interface of two different-velocity streams 

    El Mansy, Reda; Bergadà Granyó, Josep Maria; Sarwar, Wasim; Mellibovsky Elstein, Fernando (American Institute of Physics (AIP), 2022-06-02)
    Article
    Open Access
    We analyze the incompressible flow past a square cylinder immersed in the wake of an upstream splitter plate, which separates two streams of different velocities, UT (top) and UB (bottom). The Reynolds number associated ...
  • Square cylinder downstream of two different-velocity streams 

    El Mansy, Reda; Monshi Tousi, Navid; Bergadà Granyó, Josep Maria; Mellibovsky Elstein, Fernando (2022)
    Conference lecture
    Open Access
    We study the flow past a square cylinder immersed in the wake of an upstream splitter plate separating two different-velocity streams. The bottom stream Reynolds number, ReB = 56 is kept constant for all cases, while the ...
  • Aerodynamic study of the NASA’s X-43A hypersonic aircraft 

    Navó, Alex; Bergadà Granyó, Josep Maria (2022)
    Conference report
    Open Access
    A two-dimensional aerodynamic study of the NASA’s X-43A hypersonic aircraft is developed using two different approaches. The first one is analytical and based on the resolution of the oblique shock wave and Prandtl–Meyer ...
  • Large eddy simulation of optimal synthetic jet actuation on a SD7003 airfoil in post-stall conditions 

    Monshi Tousi, Navid; Bergadà Granyó, Josep Maria; Mellibovsky Elstein, Fernando (2022-08)
    Article
    Open Access
    Aerodynamic performances may be optimised by the appropriate tuning of Active Flow Control (AFC) parameters. For the first time, we couple Genetic Algorithms (GA) with an unsteady Reynolds-Averaged Navier-Stokes (RANS) ...
  • Aerodynamic efficiency improvement on a NACA-8412 airfoil via active flow control implementation 

    Couto, Nil; Bergadà Granyó, Josep Maria (Multidisciplinary Digital Publishing Institute, 2022-04-23)
    Article
    Open Access
    The present paper introduces a parametric optimization of several Active Flow Control (AFC) parameters applied to a NACA-8412 airfoil at a single post-stall Angle of Attack (AoA) of 15° and Reynolds number Re = 68.5×103. ...
  • A New Hybrid Optimization Method, Application to a Single Objective Active Flow Control Test Case 

    Coma Company, Martí; Monshi Tousi, Navid; Pons Prats, Jordi; Bugeda Castelltort, Gabriel; Bergadà Granyó, Josep Maria (Multidisciplinary Digital Publishing Institute, 2022-04-12)
    Article
    Open Access
    Genetic Algorithms (GA) are useful optimization methods for exploration of the search space, but they usually have slowness problems to exploit and converge to the minimum. On the other hand, gradient based methods converge ...
  • Capillary microfluidics for immunoassays by integrating 3D printing and pressure-sensitive adhesive 

    Azizian, Pooya; Guerrero-SanVicente, Elena; Grinyte, Ruta; Casals Terré, Jasmina; Cabot, Joan Marc (2021)
    Conference report
    Restricted access - publisher's policy
    Herein, we present a versatile immunoassay device made by 3D-printed (3DP) multilevel microfluidic chip sealed by an optically clear Pressure-Sensitive Adhesive (PSA). The bioreceptors were effectively immobilized on the ...
  • Numerical and experimental analysis of a high-throughput blood plasma separator for point-of-care applications 

    Karimi, Shadi; Mojaddan, Mohammad; Majidi, Sahand; Mehrdel, Pouya; Farré Lladós, Josep; Casals Terré, Jasmina (2021-05)
    Article
    Open Access
    Blood plasma separation from undiluted blood is an essential step in many diagnostic procedures. This study focuses on the numerical optimization of the microfluidic blood plasma separator (BPS) and experimental validation ...
  • Recent impact of microfluidics on skin models for perspiration simulation 

    Rabost Garcia, Genís; Farré Lladós, Josep; Casals Terré, Jasmina (Multidisciplinary Digital Publishing Institute (MDPI), 2021-02-21)
    Article
    Open Access
    Skin models offer an in vitro alternative to human trials without their high costs, variability, and ethical issues. Perspiration models, in particular, have gained relevance lately due to the rise of sweat analysis and ...
  • Flow control in porous media: from numerical analysis to quantitative µPAD for ionic strength measurements 

    Mehrdel, Pouya; Khosravi, Hamid; Karimi, Shadi; López Martínez, Joan Antoni; Casals Terré, Jasmina (Multidisciplinary Digital Publishing Institute (MDPI), 2021-05-11)
    Article
    Open Access
    Microfluidic paper-based analytical devices (µPADs) are a promising technology to enable accurate and quantitative in situ assays. Paper’s inherent hydrophilicity drives the fluids without the need for external pressure ...
  • Fluidic oscillators, feedback channel effect under compressible flow conditions 

    Bergadà Granyó, Josep Maria; Baghaei, Masoud; Prakash, Bhanu; Mellibovsky Elstein, Fernando (Multidisciplinary Digital Publishing Institute (MDPI), 2021-09-01)
    Article
    Open Access
    Fluidic oscillators are often used to modify the forces fluid generates on any given bluff body; they can also be used as flow, pressure or acoustic sensors, with each application requiring a particular oscillator ...

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