Exploració per autor "Castilla López, Roberto"
Ara es mostren els items 53-69 de 69
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Numerical analysis of the shaft motion in the journal bearing of a gear pump
(2010-01)
Article
Accés restringit per política de l'editorialThis paper describes a numerical analysis of the dynamics of the shaft in the journal bearing of a gear pump. -
Numerical simulation of a supersonic ejector for vacuum generation with explicit and implicit solver in openfoam
(2019-09-17)
Article
Accés obertSupersonic ejectors are used extensively in all kind of applications: compression of refrigerants in cooling systems, pumping of volatile fluids or in vacuum generation. In vacuum generation, also known as zero-secondary ... -
Numerical simulations of the flow and aerosol dispersion in a violent expiratory event: Outcomes of the "2022 International Computational Fluid Dynamics Challenge on violent expiratory events"
(2023-03-11)
Article
Accés obertThis paper presents and discusses the results of the "2022 International Computational Fluid Dynamics Challenge on violent expiratory events" aimed at assessing the ability of different computational codes and turbulence ... -
Numerical study in a mini trochoidal-gear pump with multi-meshing contact points
(American Society of Mechanical Engineers (ASME), 2016)
Text en actes de congrés
Accés restringit per política de l'editorialA numerical study in a mini trochoidal-gear pump based on an ingenious strategy to adapt the background mesh to the profiles shape and a new boundary condition is presented. The strategy achieves a final background mesh ... -
Numerical study of impingement location of liquid jet poured from a tilting ladle with lip spout
(2017-04)
Article
Accés obertA new approach for simulating liquid poured from a tilting lip spout is presented, using neither a dynamic mesh nor the moving solid solution method. In this case only the tilting ladle is moving, so we propose to rotate ... -
Numerical study of the aerodynamics of sound sources in a bass-reflex port
(Engineering Applications of Computational Fluid Mechanics, 2017-01-20)
Article
Accés obertThe aim of this paper is to study the aerodynamics phenomena of a bass-reflex port that causes noise in the audible frequency range. After discarding structural and mechanical vibration issues, the hypothesis considered ... -
Particle dispersion in two-dimensional turbulence: a comparison with 2-D kinematic simulation
(University of Thechnology and Agriculture Nicholas Copernicus University, 2007-03)
Article
Accés obertWe 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
(2014-11)
Article
Accés restringit per política de l'editorialThe 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
(2017-10-25)
Article
Accés obertCushioning 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)
(2014)
Text en actes de congrés
Accés obertThe 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.
(Universitat Politècnica de Catalunya, 2001-07-24)
Tesi
Accés obertEn 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
(Institute of Physics (IOP), 2019-10-31)
Article
Accés obertSupersonic 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
(2021-01-02)
Article
Accés obertThe 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
(2013-03)
Article
Accés restringit per política de l'editorial -
Three dimensional simulation of gerotor with deforming mesh by using OpenFOAM
(2018)
Text en actes de congrés
Accés obertA 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
(2015-04-01)
Article
Accés restringit per política de l'editorialRecently 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
(2020-05-25)
Article
Accés obertCells 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 ...
