Now showing items 1-20 of 179

  • 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)
    Conference report
    Open Access
    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, Beatriz; Aubry, Romain; Owen, H.; Vázquez Arenas, M. Benita (2014-05-30)
    Article
    Restricted access - publisher's policy
    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 computational fluid dynamics study on hemodynamics for different locations of the distal anastomosis of a bypass nearby a collateral vessel in the femoropopliteal area 

    Rivera Amores, Juan José; van der Graaf, G.B.; Escudero, J.R.; Bellmunt, S.; van de Vosse, F. (John Wiley & Sons, Ltd, 2014-06-24)
    Article
    Restricted access - publisher's policy
    Revascularization of the femoropopliteal sector is often performed by the placement of a bypass. In this paper, we have studied the effects of hemodynamics on patency of the bypass for different positions of the distal ...
  • A contribution to adaptive numerical solution of compressible flow problems 

    Fischer, Thomas B.; Oñate Ibáñez de Navarra, Eugenio (International Centre for Numerical Methods in Engineering (CIMNE), 1996)
    Book
    Open Access
    The monograph presents recent developments on the solution of high speed compressible flow problems using finite element and finite point (meshless) methods with adaptive refinement, techniques. This work treats two of the ...
  • A coupled volume-of-fluid/level-set method for simulation of two-phase flows in unstructured meshes 

    Balcázar Arciniega, Néstor; Lehmkuhl Barba, Oriol; Jofre Cruanyes, Lluís; Rigola Serrano, Joaquim; Oliva Llena, Asensio (Elsevier, 2016-01)
    Article
    Open Access
    This paper presents a methodology for simulation of two-phase flows with surface tension in the framework of unstructured meshes, which combines volume-of-fluid with level-set methods. While the volume-of-fluid transport ...
  • Active Aerodynamics applied on the Arcfox-GT Supercar 

    Gil Esteller, Enric (Universitat Politècnica de Catalunya, 2019-07-23)
    Bachelor thesis
    Restricted access - author's decision
    In this project an aerodynamic study is developed on a supercar, integrating different aerodynamic elements from the active aerodynamics. The model where this innovating technology is applied is the ArcFox-GT, a Chinese ...
  • (Active Flow Control) AFC study on an airfoil 

    Calvo San Emeterio, Carlos (Universitat Politècnica de Catalunya, 2016-09)
    Bachelor thesis
    Restricted access - author's decision
  • Active flow control in aerodynamic applications. 

    Gil Aiguasenosa, Pol (Universitat Politècnica de Catalunya, 2020-04)
    Master thesis
    Restricted access - author's decision
    The focus of this thesis is to determine the e ect of Active Flow Control ( AFC from now), studying, analyzing the behavior of airfoil and afterwards, implementing AFC and evaluate its impact on aerodynamic performance. ...
  • Active flow control on SD7003 airfoil using synthetic jets 

    Tousi, Navid Monshi; Bergadà Granyó, Josep Maria; Rodríguez Pérez, Ivette María (2019)
    Conference report
    Restricted access - publisher's policy
    The present paper focuses on applying the Active Flow Control (AFC) technology on the Selig-Donovan 7003 (SD7003) airfoil at Reynolds number 60,000, the idea is to employ synthetic jets in order to modify the lift and drag ...
  • Advanced methodology for wind resource assessment near hydroelectric dams in complex mountainous areas 

    Yang, Lin; Rojas Gregorio, José Ignacio; Villardi de Montlaur, Adeline de (2019-11-05)
    Article
    Restricted access - publisher's policy
    To increase renewable energy generation in some hydroelectric dams, a solution consisting in installing wind turbines close to dams is proposed. Indeed, dam surroundings are prone to benefit from wind speed-up effect, extra ...
  • Aerodynamical study of a photovoltaic solar tracker 

    Gutiérrez Castillo, José Leonardo (Universitat Politècnica de Catalunya, 2016-04-29)
    Bachelor thesis
    Open Access
    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.
  • A finite point method for compressible flow 

    Löhner, Rainald; Sacco Giqueaux, Carlos Gustavo; Oñate Ibáñez de Navarra, Eugenio; Idelsohn Barg, Sergio Rodolfo (John Wiley & sons, 2002-03)
    Article
    Open Access
    A weighted least squares finite point method for compressible flow is formulated. Starting from a global cloud of points, local clouds are constructed using a Delaunay technique with a series of tests for the quality of ...
  • Air distribution in street canyons: a CFD study 

    Galí i Gimeno, Jordi (Universitat Politècnica de Catalunya, 2019-06-10)
    Bachelor thesis
    Open Access
    Heat island effect and air quality are major issues in big cities and the shape ofthe street canyons is directly related with these problems. The only presence the buildings modifies the temperature in their surroundings ...
  • Algebraic implementation of a flux limiter for heterogeneous computing 

    Valle Marchante, Nicolás; Álvarez Farré, Xavier; Trias Miquel, Francesc Xavier; Castro González, Jesús; Oliva Llena, Asensio (2018)
    Conference report
    Restricted access - publisher's policy
  • 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)
    Conference report
    Restricted access - publisher's policy
    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 modified Finite Element formulation for the imposition of the slip boundary condition over embedded volumeless geometries 

    Zorrilla Martínez, Rubén; Larese De Tetto, Antonia; Rossi, Riccardo (2019-08)
    Article
    Restricted access - publisher's policy
    This work describes a novel formulation for the simulation of Navier–Stokes problems including embedded objects. The new proposal is based on the use of a modified finite element space, which replaces the standard one ...
  • 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)
    Part of book or chapter of book
    Restricted access - publisher's policy
    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 ...
  • Anàlisi numèric mitjançant OpenFOAM d’un tractament tèrmic 

    Martinez Miguel, Sergi (Universitat Politècnica de Catalunya, 2015-10)
    Master thesis (pre-Bologna period)
    Open Access
    Aquest treball pretén aprofundir en l’ús del programari lliure OpenFOAM com a eina útil i versàtil de simulació per Dinàmica de Fluids Computacional; tot centrant-se en l’àmbit de la transferència de calor i les diferents ...
  • An efficient Two-Layer wall model for accurate numerical simulations of aeronautical applications 

    Calafell Sandiumenge, Joan; Trias Miquel, Francesc Xavier; Oliva Llena, Asensio (2019)
    Conference report
    Open Access
    Two-Layer wall models have been widely studied since they allow wall modeled Large Eddy Simulationsof general non-equilibrium flows. However, they are plagued by two persistent problems, the "log-layermismatch" and the ...
  • An efficient two-layer wall model for high Reynolds number large eddy simulation 

    Calafell Sandiumenge, Joan; Trias Miquel, Francesc Xavier; Oliva Llena, Asensio (International Centre for Numerical Methods in Engineering (CIMNE), 2018)
    Conference report
    Restricted access - publisher's policy
    Wall-bounded flows at high Reynolds number are an important research field given that they are present in many important industrial applications. Nonetheless, the use of accurate numerical methodologies such as Large Eddy ...