Ara es mostren els items 21-36 de 36

  • Mecánica de fluidos : problemas resueltos 

    Bergadà Granyó, Josep Maria (Edicions UPC, 2006)
    Llibre
    Accés obert
    El presente libro es fruto de la experiencia adquirida durante toda una carrera universitaria. Muchos de los problemas que se exponen fueron, en su momento, problemas de examen de la asignatura Mecánica de Fluidos. Por una ...
  • Modelización del comportamiento de una tobera para hilatura neumática mediante anemometría laser, comportamiento de las fibras en su interior 

    Sánchez García, Juan Carlos; Tornero García, José Antonio; Bergadà Granyó, Josep Maria; Roig Munill, Francesc; Valencia Leonardo, Eugenio; Coll Tortosa, Liberto (Instituto de Investigación Textil y Cooperación Industrial, 2000-01)
    Article
    Accés obert
    Con el fin de tener un conocimiento más amplio y más profundo del funcionamiento interno de las toberas utilizadas para hilatura neumática, se ha realizado el estudio presente, el cual consta de dos partes; el análisis ...
  • NACA 2412 performance modification via using AFC 

    Summ, Thorsten; Prakash, Bhanu; Bergadà Granyó, Josep Maria; Wierschem, Andreas; Mellibovsky Elstein, Fernando (2017)
    Text en actes de congrés
    Accés restringit per política de l'editorial
    The NACA 2412 profile was numerically studied via employing 2D-DNS and implementing Active Flow Control (AFC), the Reynolds number considered was 6757, being the angle of attack of 8º. Initially, the basic flow without ...
  • Numerical study of the 2D lid-driven triangular cavities based on the Lattice Boltzmann method 

    AN, BO; Bergadà Granyó, Josep Maria (Atlantis Press, 2016)
    Text en actes de congrés
    Accés obert
    Numerical study of two dimensional lid driven triangular cavity flow is performed via using lattice Boltzmann method on low Reynolds numbers. The equilateral triangular cavity is the first geometry to be studied, the ...
  • Oleohidráulica : problemas resueltos 

    Valencia Leonardo, Eugenio; Bergadà Granyó, Josep Maria; Ripoll, Míriam (Edicions UPC Universitat Politècnica de Catalunya, 2006)
    Llibre
    Accés restringit a la comunitat UPC
    La oleohidráulica ha adquirido durante los últimos 50 años una posición de preferencia en el ámbito general de máquinas debido a sus innumerables aplicaciones y ventajas, especialmente en máquinas de obras públicas y ...
  • Parametric analysis of active flow control using steady suction and steady blowing 

    Prakash, Bhanu; Mellibovsky Elstein, Fernando; Bergadà Granyó, Josep Maria (2017)
    Text en actes de congrés
    Accés restringit per política de l'editorial
    Active Flow Control is implemented over NACA 2412 airfoil using Steady Suctionand Steady Blowing techniques. The pre-stall angle of attack (AOA) 12 0 is studied at a high Reynolds number (Re chord ) of 3.1*10 6 for ...
  • Preliminary study on fluidic actuators. Design modifications 

    Campo Sud, David del; Bergadà Granyó, Josep Maria; Campo Gatell, Vanessa del (2015)
    Text en actes de congrés
    Accés restringit per política de l'editorial
    As fluidic actuators have the advantage of lacking moving parts, their use in real applications brings high reliability. This is why, once having overcome their drawbacks, which means being able to provide the appropriate ...
  • Research on fluidic amplifiers dimensional modifications via computer simulation (CFD) 

    Baghaei, Masoud; Bergadà Granyó, Josep Maria; Campo Sud, David del; Campo Gatell, Vanessa del (Istanbul Tecnical University, 2016)
    Text en actes de congrés
    Accés restringit per política de l'editorial
    When studying active flow control applications, it is already stated that activating the boundary layer via using periodic flow produces better performance than when employing steady blowing or sucking. This is why studying ...
  • Rotor spinning transfer channel design optimization via computational fluid dynamics 

    Huiting, Lin; Bergadà Granyó, Josep Maria; Yongchun, Zeng; Nicholus T, Akankwasa; Yuze, Zhang; Jun, Wang (2017-03-16)
    Article
    Accés obert
    The conventional rotor spinning unit generates flow vortices in the transfer channel upstream region which affect the fiber configuration and consequently yarn properties. Geometry and spinning parameters such as transfer ...
  • Servoposicionador electro-oleohidráulico para una máquina de electroerosión 

    Bergadà Granyó, Josep Maria (Universitat Politècnica de Catalunya, 1996-07-24)
    Tesi
    Accés obert
    La tesis analiza el comportamiento anómalo de una servoválvula instalada en una máquina de electroerosión operando bajo ciertas condiciones de trabajo. <br/>En el primer capítulo de la tesis se describen una serie de ...
  • Square cylinder with passive flow control 

    An, Bo; Bergadà Granyó, Josep Maria; Mushyam, Aditya (2017)
    Text en actes de congrés
    Accés restringit per política de l'editorial
    In the present paper it is presented the flow around a 2D square cylinder which is located downstream of a splitter plate and at a certain distance of it. The fluid velocity below and above the splitter plate is different, ...
  • The effect of oil pressure and temperature on barrel film thickness and barrel dynamics of an axial piston pump 

    Bergadà Granyó, Josep Maria; Davies, Dyfyr Ll.; Kumar, Sushil; Watton, John (2012-03)
    Article
    Accés restringit per política de l'editorial
  • The effect of piston grooves performance in an axial piston pumps via CFD analysis 

    Kumar, Sushil; Bergadà Granyó, Josep Maria (2013-01)
    Article
    Accés restringit per política de l'editorial
  • The hydrostatic/hydrodynamic behaviour of an axial piston pump slipper with multiple lands 

    Bergadà Granyó, Josep Maria; Watton, John; Haynes, Jonathan M; Davies, Dyfyr Ll. (2010-08-01)
    Article
    Accés obert
    This study considers an analytical approach towards the understanding of the hydrostatic leakage and lift characteristic of a flat slipper of the type used for piston/slipper units within an axial piston pump or motor. ...
  • Three dimensional analysis of ahmed body aerodynamic performance enhancement using steady suction and blowing flow control techniques 

    Prakash, Bhanu; Bergadà Granyó, Josep Maria; Mellibovsky Elstein, Fernando (2018)
    Text en actes de congrés
    Accés restringit per política de l'editorial
    Aerodynamic drag reduction plays a vital role in the reduction of automobiles fuel consumption. Boundary layer physics and its intricate mechanisms that result in flow separation are to be understood and manipulated using ...
  • Three dimensional structures of flow through a square cylinder with an upstream splitter plate and for several velo city ratios 

    El Mansy, Reda; Sarwar, Wasim; Rodríguez Pérez, Ivette María; Bergadà Granyó, Josep Maria (2018)
    Text en actes de congrés
    Accés restringit per política de l'editorial
    In the present paper, three-dimensional Fluid structures and wake characteristics are evaluated for a square cylinder with an upstream splitter plate. The splitter plate divides the incoming flow in two streams, the ...