Now showing items 1-20 of 53

    • A 8-neighbor model lattice Boltzmann method applied to mathematical-physical equations 

      An, Bo; Bergadà Granyó, Josep Maria (2016-10-26)
      Article
      Open Access
      A lattice Boltzmann method (LBM) 9-bit model is presented to solve mathematical-physical equations, such as, Laplace equation, Poisson equation, Wave equation and Burgers equation. The 9-bit model has been verified by ...
    • A complete analysis of axial piston pump leakage and output flow ripples 

      Bergadà Granyó, Josep Maria; Kumar, Sushil; Davies, Dyfyr Ll.; Watton, John (2012-04)
      Article
      Restricted access - publisher's policy
    • A novel method to determine the discharge coefficient of constant section nozzles under compressible dynamic flow conditions 

      Comas Amengual, Ángel; Río Cano, Carlos; Bergadà Granyó, Josep Maria (2019-07)
      Article
      Restricted access - publisher's policy
      The present paper introduces a novel transient experimental method employed to determine the discharge coefficient of constant section nozzles of small diameters of 1 to 3 mm and with a length/diameter ratio of around one. ...
    • A numerical investigation of laminar flow over a backward facing inclined step 

      Mushyam, Aditya; Bergadà Granyó, Josep Maria; Nayeri, C. Navid (2016-08)
      Article
      Open Access
      The aim of the present study is to analyze the two dimensional flow over a backward-facing-inclined step in laminar flow regime. The inspiration for the present work is derived from the fact that in automobile industry, ...
    • A numerical investigation of wake and mixing layer interactions of flow past a square cylinder 

      Mushyam, Aditya; Bergadà Granyó, Josep Maria (2016-02-26)
      Article
      Open Access
      The aim of the present study is to simulate and analyze the interaction of two dimensional flow past a square cylinder in a laminar regime with an upstream mixing layer developed by an axis symmetrical horizontal splitter ...
    • A numerical simulation of fluid-structure interaction for flow through valves of a hermetic compressor with immersed boundary method 

      Mushyam, Aditya; Bergadà Granyó, Josep Maria (2012)
      Conference report
      Restricted access - publisher's policy
    • Active flow control on laminar flow over a backward facing step 

      Mushyam, Aditya; Bergadà Granyó, Josep Maria (Institute of Physics (IOP), 2015-09-21)
      Article
      Open Access
      In the present study, two dimensional flow over a backward-facing step in laminar flow regime with application of active flow control (AFC) technique is analysed. The aim of the present work is to gauge the effectiveness ...
    • Active flow control on SD7003 airfoil using synthetic jets 

      Tousi, Navid Monshi; Bergadà Granyó, Josep Maria; Rodríguez Pérez, Ivette María (2019)
      Conference report
      Restricted access - publisher's policy
      The present paper focuses on applying the Active Flow Control (AFC) technology on the Selig-Donovan 7003 (SD7003) airfoil at Reynolds number 60,000, the idea is to employ synthetic jets in order to modify the lift and drag ...
    • Aerodynamic study of the NASA’s X-43A hypersonic aircraft 

      Navó, Alex; Bergadà Granyó, Josep Maria (Multidisciplinary Digital Publishing Institute, 2020-11-19)
      Article
      Open Access
      A 2D 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 expansion wave ...
    • Airplane vortices evolution near ground 

      Duro, Josep M; Bergadà Granyó, Josep Maria (Multidisciplinary Digital Publishing Institute, 2021-01-05)
      Article
      Open Access
      Airport traffic around the world has sharply increased over the years; as a result, airports need to be enlarged and the landing or taking off times between two consecutive airplanes must be reduced. To precisely determine ...
    • 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 ...
    • Análisis teórico experimental del flujo de aire en toberas de hilatura 

      Bergadà Granyó, Josep Maria; Tornero García, José Antonio; Bailach Bel, Vicenç; Roig Munill, Francesc; Valencia Leonardo, Eugenio; Coll Tortosa, Liberto (Instituto de Investigación Textil y Cooperación Industrial, 2000-01)
      Article
      Open Access
      El laboratorio de Sistemas y Procesos textiles investiga, desde 1994, el sistema de hilatura neumática. El campo de investigación se basa tanto en el estudio del comportamiento mecánico de los órganos que forman el proceso ...
    • Axial piston pumps, new trends and development 

      Bergadà Granyó, Josep Maria; Kumar, Sushil; Watton, John (Nova Science Publishers, 2012-10)
      Part of book or chapter of book
      Restricted access - publisher's policy
    • Contribución a la optimización de toberas de hilatura neumática 

      Albañil Cid, Luis; Valencia Leonardo, Eugenio; Bergadà Granyó, Josep Maria; Coll Tortosa, Liberto (Instituto de Investigación Textil y Cooperación Industrial, 2004-07)
      Article
      Open Access
      Desde 1994 se viene estudiando en el Laboratorio de Sistemas y Procesos Textiles Mecánicos del Instituto de Investigación Textil y Cooperación Industrial de Terrassa el comportamiento del flujo de aire en toberas de hilatura ...
    • Effect of rotor spinning transfer channel modification on fiber orientation and yarn properties 

      Lin, Huiting; Akankwasa, Nicholus Tayari; Bergadà Granyó, Josep Maria; Wang, Jun (2019-05)
      Article
      Open Access
      The vortices are generated at the conventional transfer channel, having adverse effects on fiber configuration. In a former research, a conventional transfer channel was modified via rounding the transfer channel inlet ...
    • Estudio del sistema de estiraje para hilatura neumática de alta velocidad 

      Portero de los Llanos, Alejandro; García Congosto, Mariano; Valencia Leonardo, Eugenio; Bergadà Granyó, Josep Maria; Coll Tortosa, Liberto (Instituto de Investigación Textil y Cooperación Industrial, 2004-01)
      Article
      Open Access
      Empleando un sistema de anemometría láser, se han determinado las velocidades del flujo de aire arrastrado por el cilindro productor. Se trata de hallar la posible correlación entre la geometría, las condiciones de ...
    • Experimental investigation in axial piston pumps barrel dynamics 

      Bergadà Granyó, Josep Maria; Davies, Dyfyr Ll.; Xue, Yiqin; Kumar, Sushil (2009)
      Conference report
      Open Access
      It is known that an axial piston pump barrel experiences small oscillations due to forces acting over it. Cavitation als o occurs in many cases, damaging the plate and barrel sliding surfaces and therefore reducing ...
    • Experimental study of the internal flow structures inside a fluidic oscillator 

      Bobusch, Bernhard C.; Woszidlo, René; Bergadà Granyó, Josep Maria; Nayeri, C. Navid; Paschereit, Christian Oliver (2013-06-15)
      Article
      Restricted access - publisher's policy
      The internal flow characteristics of a fluidic oscillator were investigated experimentally. Particle image velocimetry and time-resolved pressure measurements were employed in water to visualize and quantify the internal ...
    • Fluid power, mathematical design of several components 

      Bergadà Granyó, Josep Maria; Kumar, Sushil (2014-05-30)
      Book
      Open Access
      Fluid power scientists and engineers have produced a large amount of high quality books so far, which cover a vast amount of technologies involved in this field. Names like H. Merritt, D. McCloy, H.R. Martin, W. Backe, J ...
    • Fluidic actuator performance variation via internal dimensions modifications 

      Baghaei, Masoud; Bergadà Granyó, Josep Maria; Campo Sud, David del (2017)
      Conference report
      Restricted access - publisher's policy
      When aimed to modify the downstream vortex shedding of a given bluff body, whether any road vehicle or wing profile, the use of Active Flow Control (AFC) appears to be an efficient technology. Among the different (AFC) ...