Ara es mostren els items 1-20 de 183

  • 3D modelling of transversal grates comparison of numerical result with experimental data 

    Paindelli, Andrea (Universitat Politècnica de Catalunya, 2017-06)
    Projecte Final de Màster Oficial
    Accés restringit per decisió de l'autor
    The full scale (1:1) test platform located at the UPC (Universitat Politècnica de Catalunya) allows us to reproduce the local runoff process and the study of inlet grates or other types of capture systems. Over the last ...
  • A 1D lumped-parameter/3D CFD approach for pressure drop in the aortic coarctation 

    Soudah Prieto, Eduardo; Bordoné, Maurizio; Dadvand, Pooyan; Rossi, Riccardo (Springer, 2012)
    Text en actes de congrés
    Accés restringit per política de l'editorial
    Aortic Coarctation is a congenital constriction of the aorta that increases blood pressure above the constriction and hinders the flow below it. Based on a 3D surface mesh of a moderate thoracic coarctation, a high quality ...
  • A 3D CFD numerical study of the bubble generation process into a bubble Tjunction generator and its comparison with experimental data: Part I 

    Arias Calderón, Santiago; Villardi de Montlaur, Adeline de (2016)
    Text en actes de congrés
    Accés obert
    This work presents a 3D numerical study of the bubble generation process into a bubble generator obtained with the commercial Computational Fluid Dynamics solver ANSYS Fluent v15.0.7, and its comparison with experimental ...
  • A 3D CFD numerical study of the bubble generation process into a bubble Tjunction generator and its comparison with experimental data: Part II 

    Arias Calderón, Santiago; Villardi de Montlaur, Adeline de (2016)
    Text en actes de congrés
    Accés obert
    This work is a continuation of the 3D numerical study of the bubble generation process into a T-junction bubble generator (1 mm of internal diameter) obtained with the commercial Computational Fluid Dynamics solver ANSYS ...
  • A 3D numerical study of the bubble generation process into a bubble T-junction generator and its comparison with experimental data: part I 

    Arias Calderón, Santiago; Villardi de Montlaur, Adeline de (2016)
    Text en actes de congrés
    Accés obert
    This work presents a 3D numerical study of the bubble generation process into a bubble generator obtained with the commercial Computational Fluid Dynamics solver ANSYS Fluent v15.0.7, and its comparison with experimental ...
  • A Chimera method for the incompressible Navier-Stokes equations 

    Houzeaux, Guillaume; Eguzkitza, B.; Aubry, Romain; Owen, H.; Vázquez Arenas, M. Benita (2014-05-30)
    Article
    Accés restringit per política de l'editorial
    The Chimera method was developed three decades ago as a meshing simplification tool. Different components are meshed independently and then glued together using a domain decomposition technique to couple the equations ...
  • A load balancing method for parallel genetic CFD optimizations 

    Aizpurua Udabe, Imanol; Lehmkuhl Barba, Oriol; Borrell Pol, Ricard; Pérez Segarra, Carlos David; Oliva Llena, Asensio (2015)
    Text en actes de congrés
    Accés restringit per política de l'editorial
    CFD optimizations are characterized by long and highly variable objective function evaluation times. The aim of this study is to improve the parallel performance using a new load balancing master-worker parallelization ...
  • A multi-method approach towards understanding the pathophysiology of aortic dissections – the complementary role of in-silico, in-vitro and in-vivo information 

    Rudenick, Paula; Bordoné, Maurizio; Bijnens, Bart; Soudah Prieto, Eduardo; Oñate Ibáñez de Navarra, Eugenio; Garcia Dorado, Antonio David; Evangelista, A. (Springer, 2010)
    Capítol de llibre
    Accés restringit per política de l'editorial
    Management and follow-up of chronic aortic dissections continues to be a clinical challenge due to progressive aortic dilatation. To predict dilatation, guidelines suggest follow-up of the aortic diameter. However, dilatation ...
  • A new statistical model for subgrid dispersion in large eddy simulations of particle-laden flows 

    Muela Castro, Jordi; Lehmkuhl Barba, Oriol; Pérez Segarra, Carlos David; Oliva Llena, Asensio (Institute of Physics (IOP), 2016)
    Text en actes de congrés
    Accés obert
    Dispersed multiphase turbulent flows are present in many industrial and commercial applications like internal combustion engines, turbofans, dispersion of contaminants, steam turbines, etc. Therefore, there is a clear interest ...
  • A numerical strategy to compute optical parameters in turbulent flow: application to telescopes 

    Codina, Ramon; Baiges Aznar, Joan; Pérez Sánchez, Daniel; Collados, Manuel (2008-07-29)
    Article
    Accés obert
    We present a numerical formulation to compute optical parameters in a turbulent air flow. The basic numerical formulation is a large eddy simulation (LES) of the incompressible Navier-Stokes equations, which are approximated ...
  • A Parallel CFD Model for Wind Farms 

    Avila, Matías; Folch, Arnau; Houzeaux, Guillaume; Eguzkitza, Beatriz; Prieto, Luis; Cabezón, Daniel (Elsevier, 2013-06-01)
    Article
    Accés obert
    We present a Computational Fluid Dynamics (CFD) modeling strategy for onshore wind farms aimed at predicting and opti- mizing the production of farms using a CFD model that includes meteorological data assimilation, complex ...
  • A parallel three-dimensional radial basis function interpolation method for unstructured dynamic meshes 

    Estruch Pérez, Olga; Lehmkuhl Barba, Oriol; Borrell Pol, Ricard; Pérez Segarra, Carlos David (2011)
    Comunicació de congrés
    Accés obert
    A radial basis function (RBF) interpolation method is implemented to be applied in computational fluid dynamics (CFD) problems with dynamic meshes. It is compared with the classic springs analogy smoothing, focusing on the ...
  • A PLIC-VOF implementation on parallel 3D unstructured meshes 

    Jofre Cruanyes, Lluís; Lehmkuhl Barba, Oriol; Castro González, Jesús; Oliva Llena, Asensio (2010)
    Comunicació de congrés
    Accés restringit per política de l'editorial
    The numerical simulation of interfacial and free surface ows is a vast and interesting topic in the areas of engineering and fundamental physics, such as the study of liquid-gas interfaces, formation of droplets, bubbles ...
  • A-posteriori error estimation for the finite point method with applications to compressible flow 

    Ortega, Enrique; Flores Le Roux, Roberto Maurice; Oñate Ibáñez de Navarra, Eugenio; Idelsohn Barg, Sergio Rodolfo (2017-04-03)
    Article
    Accés restringit per política de l'editorial
    An a-posteriori error estimate with application to inviscid compressible flow problems is presented. The estimate is a surrogate measure of the discretization error, obtained from an approximation to the truncation terms ...
  • Aerodynamic performance of the rear spoiler of a Formula Renault V3.5 2007 

    Pla Navarro, Roger (Universitat Politècnica de Catalunya, 2011-04-13)
    Treball Final de Grau
    Accés restringit per decisió de l'autor
    L’objectiu d’aquest projecte és simular el comportament de l’aleró posterior d’un cotxe de competició de les World Series by Renault 3.5 a mesura que es mou per l’aire. Per tant, s’estudiaran les diverses forces ...
  • Aerodynamical study of a photovoltaic solar tracker 

    Gutiérrez Castillo, José Leonardo (Universitat Politècnica de Catalunya, 2016-04-29)
    Treball Final de Grau
    Accés obert
    State of the art. Literature review about CFD applied to solar panels. Analytic approach of the problem. Application of CFD analysis. Validation of the results. Discussion of the results. Improvements proposal.
  • An analysis of the aerodynamic performances of an ancient Spanish windmill 

    Sanchez Gil, Eva (Universitat Politècnica de Catalunya, 2014-07-11)
    Treball Final de Grau
    Accés restringit per decisió de l'autor
    The windmill generates power by extracting part of the kinetic energy of the wind, and it was aimed to satisfy the basic needs on XVIII and XIX century in Southern Spain. Wind power has been used as long as humans have put ...
  • An OpenCL-based parallel CFD code for simulations on hybrid systems with massively-parallel accelerators 

    Gorobets, Andrei; Trias Miquel, Francesc Xavier; Oliva Llena, Asensio (Elsevier, 2013)
    Text en actes de congrés
    Accés obert
    A parallel finite-volume CFD algorithm for modeling of incompressible flows on hybrid supercomputers is presented. It is based on a symmetry-preserving high-order numerical scheme for structured meshes. A multilevel ...
  • An unstructured CFD approach for numerical weather prediction 

    Aubry, Romain; Vázquez, Mariano; Houzeaux, Guillaume; Cela Espín, José M.; Marras, Simone (2010)
    Text en actes de congrés
    Accés restringit per política de l'editorial
    The aim of this paper is twofold. First, it is difficult for a newcomer in the Numerical Weather Prediction (NWP) community to find similarities with Computational Fluid Dynamics (CFD) techniques as far as the numerical ...
  • Analysis of low temperature carbon dioxide capture in a supersonic nozzle 

    Hernandez Nogales, Álvaro (Universitat Politècnica de Catalunya / Technishe Universität München, 2011)
    Projecte/Treball Final de Carrera
    Accés restringit per decisió de l'autor
    Most energy scenarios suggest carbon capture and storage (CCS) from power generation might contribute to achieve the carbon emissions reduction necessary to stabilize the long-term global average atmospheric temperature. ...