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

  • Simulation of Household Refrigerators with a Flexible Numerical Tool 

    Ablanque Mejía, Nicolás; Oliet Casasayas, Carles; Rigola Serrano, Joaquim; Lehmkuhl Barba, Oriol; Pérez Segarra, Carlos David (Purdue University, 2014)
    Conference report
    Restricted access - publisher's policy
    This work presents a flexible numerical platform to simulate a whole household refrigeration unit taking into account both the refrigeration cycle itself and the refrigerated compartments network. The methodology implemented ...
  • Numerical Model of Capillary Tubes: Enhanced Performance and Study of Non-Adiabatic Effects 

    Ablanque Mejía, Nicolás; Oliet Casasayas, Carles; Rigola Serrano, Joaquim; Pérez Segarra, Carlos David (Purdue University, 2014)
    Conference report
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    In the present work a numerical model to simulate the thermal and fluid-dynamic phenomena inside non-adiabatic capillary tubes is presented. It consists of an improved version of the distributed model detailed in Ablanque ...
  • Experimental investigation of inlet distortion effect on performance of a micro gas turbine 

    Naseri, Alireza; Sammak, Shervin; Boroomand, Masoud; Alihosseini, Alireza; Tousi, Abolghasem M. (2018-09-01)
    Article
    Open Access
    An experimental study has been carried out to determine how inlet total-pressure distortion affects the performance of a micro gas turbine. An inlet simulator is designed and developed to produce and measure distortion ...
  • A time-average filtering technique to improve the efficiency of two-layer wall models for large eddy simulation in complex geometries 

    Calafell Sandiumenge, Joan; Trias Miquel, Francesc Xavier; Lehmkuhl Barba, Oriol; Oliva Llena, Asensio (Elsevier, 2019-06-30)
    Article
    Restricted access - publisher's policy
    Two-Layer wall models have been recurrently studied since they represent a good physical model for Large Eddy Simulations with underresolved wall regions. Specifically, those based on the Reynolds Averaged Navier-Stokes ...
  • A second-order time accurate semi-implicit method for fluid–structure interaction problems 

    Naseri, Alireza; González Acedo, Ignacio; Amani, Ahmad; Pérez Segarra, Carlos David; Oliva Llena, Asensio (2019-04-01)
    Article
    Restricted access - publisher's policy
    This paper is concerned with numerical solution of fluid-structure inter-action (FSI) problems involving an incompressible viscous flow and an elasticstructure. A semi-implicit partitioned method with second-order ...
  • Numerical study of binary droplets collision in the main collision regimes 

    Amani, Ahmad; Balcázar Arciniega, Néstor; Gutiérrez Álvarez, Enrique; Oliva Llena, Asensio (2019-08-15)
    Article
    Restricted access - publisher's policy
    Direct numerical simulation of binary droplets collision is done using a conservative level-set method. The Navier-Stokes and level-set equations are solved using a finite-volume method on collocated grids. A novel lamella ...
  • 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 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
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  • 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
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    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
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  • 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 ...

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