Now showing items 1-14 of 14

    • A level-set method for thermal motion of bubbles and droplets 

      Balcázar Arciniega, Néstor; Oliva Llena, Asensio; Rigola Serrano, Joaquim (Institute of Physics (IOP), 2016)
      Conference report
      Open Access
      A conservative level-set model for direct simulation of two-phase flows with thermocapillary effects at dynamically deformable interface is presented. The Navier-Stokes equations coupled with the energy conservation equation ...
    • A multiple marker level-set method for simulation of deformable fluid particles 

      Balcázar Arciniega, Néstor; Lehmkuhl Barba, Oriol; Rigola Serrano, Joaquim; Oliva Llena, Asensio (2015-09-01)
      Article
      Open Access
      A novel multiple marker level-set method is introduced for Direct Numerical Simulation of deformable fluid particles (bubbles and droplets), which is integrated in a finite-volume framework on collocated unstructured grids. ...
    • A particle finite element-based model for droplet spreading analysis 

      Mahrous, Elaf; Jarauta, Alex; Chan, Thomas; Ryzhakov, Pavel; Weber, Adam Z.; Roy, R. Valéry; Secanell, Marc (2020-04)
      Article
      Open Access
      A particle finite element method-based model is proposed to analyze droplet dynamics problems, particularly droplet spreading on solid substrates (wetting). The model uses an updated Lagrangian framework to formulate the ...
    • A Study of binary collision of GNF droplets using a conservative level-set method 

      Amani, Ahmad; Balcázar Arciniega, Néstor; Naseri, Alireza; Oliva Llena, Asensio (International Centre for Numerical Methods in Engineering (CIMNE), 2018)
      Conference lecture
      Restricted access - publisher's policy
      In this study, numerical simulations of binary droplet collisions of two GNF droplets are carried out. Navier-Stokes equations are solved for fluid motion both inside and outside of the droplet using a conservative ...
    • An study of phenomena around droplets impacting on a liquid surface 

      Raynal, Sylvain Julien Jacques (Universitat Politècnica de Catalunya, 2010-01-25)
      Bachelor thesis
      Open Access
      Estudi experimental de les diferents fenomenologies que s'observen quan una gota impacta amb una superficie d'aigua. Es realitzara un analisi centrat principalment en els aspectes energetics del fenomen.
    • Comparison of drop evaporation models on hot surface 

      González Esteve, Adrià (Universitat Politècnica de Catalunya / Politecnico di Milano, 2014)
      Bachelor thesis
      Open Access
      Covenantee:   Politecnico di Milano
      This project is a study of how a sessile drop evaporates on a hot surface. Some existing models of droplet evaporation are explained, understood, simulated and compared. This project also provides an expression of drop ...
    • DNS of falling droplets in a vertical channel 

      Balcázar Arciniega, Néstor; Castro González, Jesús; Chiva Segura, Jorge; Oliva Llena, Asensio (WIT Press, 2018-02-01)
      Article
      Open Access
      This paper presents Direct Numerical Simulation (DNS) of the falling motion of single and multiple deformable drops in a vertical channel. A systematic study of the wall effect on the motion of single drop is performed for ...
    • Estudio de la turbulencia del aire y su efecto en la distribución de producto en carretillas adaptadas para tratamientos en invernaderos 

      Salcedo Cidoncha, Ramón; Llop Casamada, Jordi; Gallart González-Palacio, Montserrat; Campos Tobajas, Javier; Ortega Rioja, Paula; Gil Moya, Emilio (2017)
      Conference report
      Open Access
      The present work consisted to characterize the fluctuations of the airflow produced by 4 sprayers adapted to greenhouse phytosanitary applications. Four equipment were used: 1) a handheld trolley sprayer (Amate, Almería, ...
    • Experimental investigation of the impact of single droplets of non-Newtonian fluid 

      Yzaguirre Sánchez, Silvia-Luna (Universitat Politècnica de Catalunya / Technishe Universität Darmstadt, 2009)
      Master thesis (pre-Bologna period)
      Restricted access - author's decision
      This study is devoted to the investigation of impact of a paint drop onto a thin liquid film. In particular the mechanism of bubble entrapment during drop impact will be studied. The study is motivated by the technology ...
    • Experimental study of the influence of an electric field on the shape of a droplet 

      Romero Herreros, Núria (Universitat Politècnica de Catalunya / Université Libre de Bruxelles, 2014)
      Master thesis
      Open Access
      The electrowetting effect has emerged as an important research topic in recent years. Manipulation of droplets by electric fields has been extensively studied employing different setups, the most common being ...
    • Experimental study of water droplet collisions in low gravity 

      Suñol Galofre, Francesc Xavier; González Cinca, Ricardo (2010)
      Conference report
      Open Access
      An experimental setup for the study of droplet collisions in a drop tower is presented.
    • Gravity-driven motion of a swarm of bubbles in a vertical pipe 

      Balcázar Arciniega, Néstor; Lehmkuhl Barba, Oriol; Castro González, Jesús; Rigola Serrano, Joaquim; Oliva Llena, Asensio (2015)
      Conference report
      Restricted access - publisher's policy
      In this work, Direct Numerical Simulations of gravity-driven motion of a swarm of bubbles in a vertical pipe are presented. These simulations were carried out in the contex of a multiple marker level-set methodology, which ...
    • Liquid jet breakup and subsequent droplet dynamics under normal gravity and in microgravity conditions 

      Suñol Galofre, Francesc Xavier; González Cinca, Ricardo (2015-07-28)
      Article
      Open Access
      We present an experimental study on the characteristics of liquid jets in different configurations. We consider jets injected perpendicular to gravity, jets injected parallel to gravity, and jets injected in a microgravity ...
    • On the application of the PFEM to droplet dynamics modeling in fuel cells 

      Ryzhakov, Pavel; Jarauta Arabí, Àlex; Secanell, Marc; Pons Prats, Jordi (Springer, 2016-04-26)
      Article
      Open Access
      The Particle Finite Element Method (PFEM) is used to develop a model to study two-phase flow in fuel cell gas channels. First, the PFEM is used to develop the model of free and sessile droplets. The droplet model is ...