Exploració per autor "Bergadà Granyó, Josep Maria"
Ara es mostren els items 21-40 de 77
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Characteristic spanwise length scales of streamwise vortical structures in the wake of a circular cylinder at Re = 1500 measured via global and local approaches
(Elsevier, 2023-01-30)
Article
Accés restringit per política de l'editorialWake characteristics of the flow past a circular cylinder are analysed in detail at Reynolds number Re = 1500 via direct numerical simulation. A periodic spanwise domain of length 1.5pD has been found to yield correct ... -
Contribución a la optimización de toberas de hilatura neumática
(Instituto de Investigación Textil y Cooperación Industrial, 2004-07)
Article
Accés obertDesde 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 ... -
Discharge coefficients of a heavy suspension nozzle
(MDPI, 2021-03-15)
Article
Accés obertThe suspensions used in heavy vehicles often consist of several oil and two gas chambers. In order to perform an analytical study of the mass flow transferred between two gas chambers separated by a nozzle, and when ... -
Effect of rotor spinning transfer channel modification on fiber orientation and yarn properties
(2019-05)
Article
Accés obertThe 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
(Instituto de Investigación Textil y Cooperación Industrial, 2004-01)
Article
Accés obertEmpleando 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
(2009)
Text en actes de congrés
Accés obertIt 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
(2013-06-15)
Article
Accés restringit per política de l'editorialThe 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 ... -
Flow control, active and passive applications
(Multidisciplinary Digital Publishing Institute, 2023-08-14)
Article
Accés obertThe Boundary Layer (BL) dynamic performance greatly affects the forces acting on any Bluff body. Ideally, the boundary layer should be attached to the surface but when separation occurs, the vortical structures and the ... -
Fluid power, mathematical design of several components
(2014-05-30)
Llibre
Accés obertFluid 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
(2017)
Text en actes de congrés
Accés restringit per política de l'editorialWhen 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) ... -
Fluidic oscillators, feedback channel effect under compressible flow conditions
(Multidisciplinary Digital Publishing Institute (MDPI), 2021-09-01)
Article
Accés obertFluidic 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 ... -
Fluidic oscillators, the effect of some design modifications
(Multidisciplinary Digital Publishing Institute, 2020-03-20)
Article
Accés obertThe 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 ... -
Investigation of a buoyant bubble motion in a wall-driven square cavity
(Springer, 2022-11-17)
Capítol de llibre
Accés restringit per política de l'editorialDirect steam generation is considered as a potential substitute for conventional power generation technologies, for its advantageous characteristics. It can be directly powered by solar radiation by concentrating it on a ... -
Large eddy simulation of optimal synthetic jet actuation on a SD7003 airfoil in post-stall conditions
(2022-08)
Article
Accés obertAerodynamic 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) ... -
Lid driven triangular and trapezoidal cavity flow: vortical structures for steady solutions and Hopf bifurcations
(Multidisciplinary Digital Publishing Institute, 2023-01-09)
Article
Accés obertA numerical study of two dimensional lid-driven triangular and trapezoidal cavity flow is performed via using the lattice Boltzmann method (LBM) for steady solutions. The equilateral and right-angled isosceles triangular ... -
Máquinas hidráulicas : problemas resueltos
(Edicions UPC, 1998)
Llibre
Accés restringit a la comunitat UPCEn el libro que se presenta, se repasan algunos de los temas básicos sobre máquinas hidráulicas que todo Ingeniero debe conocer. Los problemas que aquí se exponen, son fruto de más de 15 años de docencia, y en su mayoría ... -
MECÀNICA DE FLUIDS (Examen 1r Quadr.)
(Universitat Politècnica de Catalunya, 2006-01-12)
Examen
Accés restringit a la comunitat UPC -
MECÀNICA DE FLUIDS (Examen 1r Quadr.)
(Universitat Politècnica de Catalunya, 2008-01-12)
Examen
Accés restringit a la comunitat UPC -
MECÀNICA DE FLUIDS (Examen 1r Quadr.)
(Universitat Politècnica de Catalunya, 2004-01-12)
Examen
Accés restringit a la comunitat UPC -
MECÀNICA DE FLUIDS (Examen 2n Quadr.)
(Universitat Politècnica de Catalunya, 2005-04-02)
Examen
Accés restringit a la comunitat UPC
