Now showing items 1-16 of 16

  • Acoustic control of bubbles in cryogenic tanks 

    López Bou, Adrià (Universitat Politècnica de Catalunya, 2019-10-01)
    Bachelor thesis
    Restricted access - confidentiality agreement
    Acoustic control of cryogenic fuels
  • A level-set method for mass transfer in bubble swarms 

    Balcázar Arciniega, Néstor; Antepara Zambrano, Óscar; Castro González, Jesús; Oliva Llena, Asensio (2018)
    Conference lecture
    Restricted access - publisher's policy
  • 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. ...
  • Direct numerical simulation of rising bubble with path instability 

    Antepara Zambrano, Óscar; Balcázar Arciniega, Néstor; Rigola Serrano, Joaquim; Oliva Llena, Asensio (2018)
    Conference report
    Restricted access - publisher's policy
    Present research is focused on combining High- Performance Computing (HPC) and Direct Numerical Simulation (DNS) of two-phase flows, to study the dy- namic behavior of rising bubble whit path instabilities with moderate/high ...
  • DNS of drag-force and reactive mass transfer in gravity-driven bubbly flows 

    Balcázar Arciniega, Néstor; Antepara Zambrano, Óscar; Rigola Serrano, Joaquim; Oliva Llena, Asensio (2019)
    Conference report
    Restricted access - publisher's policy
  • DNS of Mass Transfer from Bubbles Rising in a Vertical Channel 

    Balcázar Arciniega, Néstor; Rigola Serrano, Joaquim; Oliva Llena, Asensio (Springer, 2019)
    Conference report
    Restricted access - publisher's policy
    This work presents Direct Numerical Simulation of mass transfer from buoyancy-driven bubbles rising in a wall-confined vertical channel, through a multiple markers level-set method. The Navier-Stokes equations and mass ...
  • DNS of the rising motion of a swarm of bubbles in a confined vertical channel 

    Balcázar Arciniega, Néstor; Lehmkuhl Barba, Oriol; Castro González, Jesús; Oliva Llena, Asensio (Springer, 2018)
    Conference lecture
    Restricted access - publisher's policy
  • DNS of Thermocapillary Migration of Deformable Droplets 

    Balcázar Arciniega, Néstor; Antepara Zambrano, Óscar; Rigola Serrano, Joaquim; Oliva Llena, Asensio (Springer Nature, 2019)
    Conference report
    Restricted access - publisher's policy
  • 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 diphasic flow during the injection stage of composite processing 

    Blanch Sánchez, Júlia (Universitat Politècnica de Catalunya, 2019-04-24)
    Bachelor thesis
    Open Access
    Covenantee:  École polytechnique de Montréal
    The bubbles have been studied for 20 years. In the aeronautical sector, these bubbles appear during the injection for the creation in a composite material when the air is entrapped. For an aeronautical part certification, ...
  • 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 ...
  • Injector diameter influence in the generation of minibubbles for space applications 

    Sann, Evie (Universitat Politècnica de Catalunya, 2012-07-27)
    Bachelor thesis
    Restricted access - author's decision
    To finish my second academic year I have to make a training course, I choose it in the Microgravity Laboratory at the Castelldefels School of Technology (EPSC) of the Technical University of Catalonia (UPC). My report ...
  • Level-set simulations of buoyancy-driven motion of single and multiple bubbles 

    Balcázar Arciniega, Néstor; Lehmkuhl Barba, Oriol; Jofre Cruanyes, Lluís; Olivaa, Assensi (2015-12-01)
    Article
    Open Access
    This paper presents a numerical study of buoyancy-driven motion of single and multiple bubbles by means of the conservative level-set method. First, an extensive study of the hydrodynamics of single bubbles rising in a ...
  • Numerical study of rising bubbles with path instability using conservative level-set and adaptive mesh refinement 

    Antepara Zambrano, Óscar; Balcázar Arciniega, Néstor; Rigola Serrano, Joaquim; Oliva Llena, Asensio (Elsevier, 2019-06-15)
    Article
    Restricted access - publisher's policy
    This paper focuses on three-dimensional direct numerical simulations of rising bubbles in the wobbling regime, and the study of its dynamical behavior for Eötvös number 1  ≤  Eo  ≤  10 and Morton number 1e−11  ≤ M ≤  1e−9. ...
  • Numerical study with OpenFOAM of the bubble generation process in an inverse T-junction in microgravity conditions 

    Rosado Bailón, Gisela (Universitat Politècnica de Catalunya, 2019-07-16)
    Bachelor thesis
    Open Access
    Microgravity is the condition perceived in an object or body when gravity effect is negligible. This can mostly happen when the object is in a constant free fall state, which gives the false perception of Zero Gravity. It ...
  • The effects of a sound field on bubbles and particles in a fluid 

    Lopes de Magalhaes, Lucia (Universitat Politècnica de Catalunya, 2012-07-27)
    Bachelor thesis
    Restricted access - author's decision
    During this training course, I study in the Microgravity Labotory at the Castelldefels School of Technology (EPSC) of the Technical University of Catalonia (UPC). Today, the NASA turns on the conquest of the Moon. It is ...