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Ara es mostren els items 59-69 de 69

    • Particle dispersion in two-dimensional turbulence: a comparison with 2-D kinematic simulation 

      Castilla López, Roberto; Redondo Apraiz, José Manuel; Gámez Montero, Pedro Javier; Babiano, Armando (University of Thechnology and Agriculture Nicholas Copernicus University, 2007-03)
      Article
      Accés obert
      We study numerically the comparison between Lagrangian experiments on turbulent particle dispersion in 2-D turbulent flows performed, on the one hand, on the basis of direct numerical simulations (DNS) and, on the ...

    • Pressure effects on the performance of external gear pumps under cavitation 

      Campo Sud, David del; Castilla López, Roberto; Raush Alviach, Gustavo Adolfo; Gámez Montero, Pedro Javier; Codina Macià, Esteban (2014-11)
      Article
      Accés restringit per política de l'editorial
      The numerical analysis of an external gear pump with cavitation effects has been validated with experimental data obtained by applying Time-Resolved Particle Image Velocimetry. The effect of inlet and outlet pressure on ...

    • Pressure-drop coefficients for cushioning system of hydraulic cylinder with grooved piston: a computational fluid dynamic simulation 

      Castilla López, Roberto; Alemany, Ignasi; Algar, Antonio; Gámez Montero, Pedro Javier; Roquet, Pedro; Codina Macià, Esteban (2017-10-25)
      Article
      Accés obert
      Cushioning is an important aspect in hydraulic cylinder performance. The piston has to be decelerated before it strikes the end cap in order to avoid stresses in the cylinder components and reduce vibration that can be ...

    • Sediment and plankton lift off recirculations in strong synthetic turbulence (KS) 

      Redondo Apraiz, José Manuel; Castilla López, Roberto; Sekula, Emil; Furmanek, Petr (2014)
      Text en actes de congrés
      Accés obert
      The study of particle diffusion and of turbulent sedimentation is of great importance in many geophysical fields, such as in Environmental Science or Oceanography as well as in Bio-environmental and industrial processes. ...

    • Simulación cinemática de flujo turbulento.Aplicación al estudio de la estructura de la turbulencia y de la difusión turbulenta. 

      Castilla López, Roberto (Universitat Politècnica de Catalunya, 2001-07-24)
      Tesi
      Accés obert
      En este trabajo abordan diversos problemas relacionados con los flujos de fluido en régimen turbulento. El principal problema tratado es el de la dispersión de partículas en tiempos intermedios. Se analizan también las ...

    • Simulation of ejector for vacuum generation 

      Macià Cid, Llorenç; Castilla López, Roberto; Gámez Montero, Pedro Javier (Institute of Physics (IOP), 2019-10-31)
      Article
      Accés obert
      Supersonic ejectors are used in a wide range of applications such as compression of refrigerants in cooling systems, pumping of volatile fluids, or vacuum generation. The objective of the present paper is to mesh and ...

    • Simulation of hydraulic cylinder cushioning 

      Algar Espejo, Antonio; Freire Venegas, Francisco Javier; Castilla López, Roberto; Codina Macià, Esteban (2021-01-02)
      Article
      Accés obert
      The internal cushioning systems of hydraulic linear actuators avoid mechanical shocks at the end of their stroke. The design where the piston with perimeter grooves regulates the flow by standing in front of the outlet ...

    • Small-scale characteristics and turbulent statistics of the flow in an external gear pump by time-resolved PIV 

      Ertürk, S.; Vernet, Anton; Pallarés, J.; Castilla López, Roberto; Raush Alviach, Gustavo Adolfo (2013-03)
      Article
      Accés restringit per política de l'editorial

    • Three dimensional simulation of gerotor with deforming mesh by using OpenFOAM 

      Castilla López, Roberto; Gámez Montero, Pedro Javier; Raush Alviach, Gustavo Adolfo; Codina Macià, Esteban (2018)
      Text en actes de congrés
      Accés obert
      A new-born design and construction of a mini gerotor metering pump with trochoidal-teeth is presented. The technical innovation in this new-born design is to study the fluid dynamic effects of interteeth and lateral ...

    • Three-dimensional numerical simulation of an external gear pump with decompression slot and meshing contact point 

      Castilla López, Roberto; Gámez Montero, Pedro Javier; Campo Sud, David del; Raush Alviach, Gustavo Adolfo; García Vilchez, Mercedes; Codina Macià, Esteban (2015-04-01)
      Article
      Accés restringit per política de l'editorial
      Recently several works have been published on numerical simulation of an external gear pump (EGP). Such kinds of pumps are simple and relatively inexpensive, and are frequently used in fluid power applications, such as ...

    • Tracking intracellular forces and mechanical property changes in mouse one-cell embryo development 

      Duch Llobera, Marta; Torras, Núria; Castilla López, Roberto (2020-05-25)
      Article
      Accés obert
      Cells comprise mechanically active matter that governs their functionality, but intracellular mechanics are difficult to study directly and are poorly understood. However, injected nanodevices open up opportunities to ...