L'activitat de recerca del Grup està centrada en tres línies principals: i) RECERCA BÀSICA: formulació matemàtica, resolució numèrica i validació experimental de fenòmens de transferència de calor i massa i de dinàmica de fluid; ii) RECERCA APLICADA: en els camps de la refrigeració; HVAC; sistemes actius i passius d'aprofitament de l'energia solar; bescanviadors de calor, aerodinàmica, refrigeració de components electrònics, etc; iii) TRANSFERÈNCIA DE TECNOLOGIA a sectors industrials i socials: innovació, estalvi energètic, reducció d'impacte ambiental.

The main objectives of the centre are teaching, research and technology transfer in the field of heat and mass transfer. Studies are carried out either from a basic research perspective, in which mathematical formulation, numerical solutions and experimental validation are considered, or from the perspective of applied research, in which the know-how acquired in the basic research line is applied to thermal and fluid dynamic design and the optimisation of thermal systems and equipment. The basic research line includes natural and forced convection, turbulence simulation, combustion, two-phase flow, solid-liquid phase change, radiation, porous media, computational fluid dynamics (CFD) and heat transfer, aerodynamics, high-performance computing (numerical algorithms and solvers, parallel computing), etc. In the applied research line, particular attention is paid to projects in the fields of refrigeration, HVAC, active and passive solar energy systems, heat exchangers, heat storage using liquids and phase change

The main objectives of the centre are teaching, research and technology transfer in the field of heat and mass transfer. Studies are carried out either from a basic research perspective, in which mathematical formulation, numerical solutions and experimental validation are considered, or from the perspective of applied research, in which the know-how acquired in the basic research line is applied to thermal and fluid dynamic design and the optimisation of thermal systems and equipment. The basic research line includes natural and forced convection, turbulence simulation, combustion, two-phase flow, solid-liquid phase change, radiation, porous media, computational fluid dynamics (CFD) and heat transfer, aerodynamics, high-performance computing (numerical algorithms and solvers, parallel computing), etc. In the applied research line, particular attention is paid to projects in the fields of refrigeration, HVAC, active and passive solar energy systems, heat exchangers, heat storage using liquids and phase change

Recent Submissions

  • Numerical and experimental study of absorption of H2O vapor in wavy falling film of LiBr aqueous solution in vertical tubes and in presence of non-absorbables 

    García Rivera, Eduardo; Castro González, Jesús; Farnós Baulenas, Joan; Oliet Casasayas, Carles (Elsevier, 2019-04-01)
    Article
    Restricted access - publisher's policy
    One of the main reasons for the discrepancies between theoretical predictions of absorption phenomena made by mathematical models when they are compared against experimental results under real conditions, are the presence ...
  • 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
  • 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 ...
  • 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
  • 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 ...
  • On the solution of the problem of a drop falling against a plane by using a level set-moving mesh-immersed boundary method 

    Gutiérrez, Enrique; Favre, F.; Balcázar Arciniega, Néstor; Rigola Serrano, Joaquim (WIT Press, 2018)
    Article
    Open Access
    A coupled Conservative Level Set – Moving Mesh – Immersed Boundary method is formulated and validated against the three-dimensional gravity-driven falling drop problem. First, by employing Conservative Level-Set (CLS) ...
  • Vapor Compression System Modelica Library for Aircraft ECS 

    Ablanque Mejía, Nicolás; Torras Ortiz, Santiago; Oliet Casasayas, Carles; Rigola Serrano, Joaquim; Pérez Segarra, Carlos David (Purdue University, 2018)
    Conference report
    Restricted access - publisher's policy
    This work presents a Modelica library aimed to simulate vapor compression systems at both steady and transient conditions. The simulation of these specific systems is particularly challenging ...
  • A level-set method for interfacial heat or mass transfer in two-phase flows 

    Balcázar Arciniega, Néstor; Antepara Zambrano, Óscar; Rigola Serrano, Joaquim; Oliva Llena, Asensio (International Centre for Numerical Methods in Engineering (CIMNE), 2018)
    Conference lecture
    Restricted access - publisher's policy
    A level-set model is proposed for simulating interfacial heat or mass transfer in two-phase flows. The Navier-Stokes equations as well as the heat transfer or mass transfer equations are discretized using a finite-volume ...
  • Numerical approach to study bubbles and drops evolving through complex geometries by using a level set – Moving mesh – Immersed boundary method 

    Gutiérrez González, Ernesto; Favre, F.; Balcázar Arciniega, Néstor; Amani, Ahmad; Rigola Serrano, Joaquim (2018-10-01)
    Article
    Restricted access - publisher's policy
    The present work proposes a method to study problems of drops and bubbles evolving in complex geometries. First, a conservative level set (CLS) method is enforced to handle the multiphase domain while keeping the mass ...
  • Strategies for the heterogeneous execution of large-scale simulations on hybrid supercomputers 

    Álvarez Farré, Xavier; Gorobets, Andrey; Trias Miquel, Francesc Xavier (International Centre for Numerical Methods in Engineering (CIMNE), 2018)
    Conference lecture
    Restricted access - publisher's policy
    Massively-parallel devices of various architectures are being adopted by the newest supercomputers to overcome the actual power constraint in the context of the exascale challenge. This progress leads to an increasing ...
  • Second-Order Semi-Implicit Partitioned Method for Fluid-Structure Interaction Problems 

    Naseri, Alireza; González Acedo, Ignacio; Amani, Ahmad; Pérez Segarra, Carlos David (Centro Internacional de Métodos Numéricos en Ingeniería (CIMNE), 2018)
    Conference report
    Restricted access - publisher's policy
    This paper is concerned with numerical solution of fluid-structure interaction (FSI) problems involving an incompressible viscous flow and an elastic structure. A second-order time accurate semi-implicit method is proposed ...
  • Direct numerical simulation of backward-facing step flow at Ret = 395 and expansion ratio 2 

    Pont Vilchez, Arnau; Trias Miquel, Francesc Xavier; Gorobets, Andrey; Oliva Llena, Asensio (2019-03-25)
    Article
    Restricted access - publisher's policy
    Backward-facing step (BFS) constitutes a canonical configuration to study wallbounded flows subject to massive expansions produced by abrupt changes in geometry. Recirculation flow regions are common in this type of flow, ...

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