Enviaments recents

  • Numerical study of Taylor bubbles rising in a stagnant liquid using a level-set/moving-mesh method 

    Gutiérrez González, Ernesto; Balcázar Arciniega, Néstor; Bartrons Casademont, Eduard; Rigola Serrano, Joaquim (2017-06-08)
    Article
    Accés restringit per política de l'editorial
    An Arbitrary Lagrangian-Eulerian formulation has been posed to solve the challenging problem of the three-dimensional Taylor bubble, within a Conservative Level Set (CLS) framework. By employing a domain optimization method ...
  • A 3-D volume-of-fluid advection method based on cell-vertex velocities for unstructured meshes 

    Jofre Cruanyes, Lluís; Lehmkuhl Barba, Oriol; Castro González, Jesús; Oliva Llena, Asensio (Elsevier, 2014-05-01)
    Article
    Accés restringit per política de l'editorial
    A new geometrical Volume-of-Fluid (VOF) method for capturing interfaces on three-dimensional (3-D) Cartesian and unstructured meshes is introduced. The method reconstructs interfaces as first- and second-order piecewise ...
  • A low-dissipation convection scheme for the stable discretization of turbulent interfacial flow 

    Schillaci, Eugenio; Jofre Cruanyes, Lluís; Balcázar Arciniega, Néstor; Antepara Zambrano, Óscar; Oliva Llena, Asensio (Elsevier, 2017-08-10)
    Article
    Accés restringit per política de l'editorial
    This paper analyzes a low-dissipation discretization for the resolution of immiscible, incompressible multiphase flow by means of interface-capturing schemes. The discretization is built on a three-dimensional, unstructured ...
  • Simulation model to find the best comfort, energy and cost scenarios for building refurbishment 

    Fonseca Casas, Antoni; Ortiz, Joana Aina; Garrido Soriano, Núria; Fonseca Casas, Pau; Salom Tormo, Jaume (2017-05-12)
    Article
    Accés restringit per política de l'editorial
    This article proposes a methodology to assess building behaviour, whilst taking its life cycle into account. Understanding of the system can be obtained by combining well-known energy consumption calculation engines (TRNSYS) ...
  • Study of the molecular dynamics of multiarm star polymers with a poly(ethyleneimine) core and poly(lactide) multiarms 

    Román Concha, Frida Rosario; Colomer Vilanova, Pere; Calventus Solé, Yolanda; Hutchinson, John M. (2017-02-04)
    Article
    Accés obert
    Multiarm star polymers, denoted PEIx-PLAy and containing a hyperbranched poly(ethyleneimine) (PEI) core of different molecular weights x and poly(lactide) (PLA) arms with y ratio of lactide repeat units to N links were ...
  • Electricity generation prospects from clustered smallholder and irrigated rice farms in Ghana 

    Arranz Piera, Pol; Kemausuor, Francis; Addo, Ahmad; Velo García, Enrique (2017-02-15)
    Article
    Accés restringit per política de l'editorial
    In farming communities in Ghana and the West African region, crop residues are often unused and remain available for valorisation. This study has analysed the prospects of electricity generation using crop residues from ...
  • Large eddy simulation of a turbulent diffusion flame: some aspects of subgrid modelling consistency 

    Ventosa Molina, Jordi; Lehmkuhl, Oriol; Pérez Segarra, Carlos David; Oliva Llena, Asensio (2017-04-26)
    Article
    Accés restringit per política de l'editorial
    In the context of Large Eddy Simulation (LES) solely for the momentum transport equation there may be found several models for the turbulent subgrid fluxes. Furthermore, among those relying on the eddy diffusivity approach, ...
  • Latent curing of epoxy-thiol thermosets 

    Konuray, Ali Osman; Fernández Francos, Xavier; Ramis Juan, Xavier (Elsevier, 2017-05-05)
    Article
    Accés restringit per política de l'editorial
    Epoxy-thiol curing is a click reaction which allows quantitative yield of the end products. The base-catalyzed reaction is rapid at low temperatures so it is most often desirable to harness reactivity by using latent ...
  • DNS and regularization modeling of a turbulent differentially heated cavity of aspect ratio 5 

    Trias Miquel, Francesc Xavier; Gorobets, Andrei; Oliva Llena, Asensio; Pérez Segarra, Carlos David (2013-01-15)
    Article
    Accés obert
    This work is devoted to the study of turbulent natural convection flows in differentially heated cavities. The adopted configuration corresponds to an airfilled (Pr = 0.7) cavity of aspect ratio 5 and Rayleigh number Ra ...
  • Three dimensionality in the wake of the flow around a circular cylinder at Reynolds number 5000 

    Aljure Osorio, David E.; Lehmkuhl, Oriol; Rodríguez Pérez, Ivette María; Oliva Llena, Asensio (Elsevier, 2017-04-02)
    Article
    Accés restringit per política de l'editorial
    The turbulent flow around a circular cylinder has been investigated at Re=5000Re=5000 using direct numerical simulations. Low frequency behavior, vortex undulation, vortex splitting, vortex dislocations and three dimensional ...

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