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

  • Minimization procedure of experimental tests for calibration purposes, within HVAC&R energy efficiency framework 

    Morales Ruíz, Sergio; Oliet Casasayas, Carles; Castro González, Jesús; Rigola Serrano, Joaquim; Oliva Llena, Asensio (2019)
    Conference report
    Open Access
    Simulation models and predictive tools need to be fast, accurate and robust at the same time. The models that have to provide numerical solutions under transient conditions for a long period of time need to be simple with ...
  • An efficient Two-Layer wall model for accurate numerical simulations of aeronautical applications 

    Calafell Sandiumenge, Joan; Trias Miquel, Francesc Xavier; Oliva Llena, Asensio (2019)
    Conference report
    Open Access
    Two-Layer wall models have been widely studied since they allow wall modeled Large Eddy Simulationsof general non-equilibrium flows. However, they are plagued by two persistent problems, the "log-layermismatch" and the ...
  • Assessment and comparison of a recent kinematic sensitive subgrid length scale in Hybrid RANS-LES 

    Pont Vilchez, Arnau; Trias Miquel, Francesc Xavier; Revell, Alistair; Oliva Llena, Asensio (Springer Nature, 2020)
    Conference report
    Restricted access - publisher's policy
    A recent kinematic sensitive subgrid length scale, Δlsq, initially developed for LES applications, is now considered for DES. Even though it is presented as a subgrid length scale, instead of a grey area mitigation (GAM) ...
  • Numerical study of droplet deformation in shear flow using a conservative level-set method 

    Amani, Ahmad; Balcázar Arciniega, Néstor; Castro González, Jesús; Oliva Llena, Asensio (2019-11-02)
    Article
    Restricted access - publisher's policy
    This paper is concerned with a numerical study on the behavior of a single Newtonian droplet suspended in another Newtonian fluid, all subjected to a simple shear flow. Conservative finite-volume approximation on a collocated ...
  • An energy-preserving level set method for multiphase flows 

    Valle Marchante, Nicolás; Trias Miquel, Francesc Xavier; Castro González, Jesús (2020-01-01)
    Article
    Restricted access - publisher's policy
    The computation of multiphase flows presents a subtle energetic equilibrium between potential (i.e., surface) and kinetic energies. The use of traditional interface-capturing schemes provides no control over such a dynamic ...
  • A dynamic load balancing method for the evaluation of chemical reaction rates in parallel combustion simulations 

    Muela Castro, Jordi; Borrell Pol, Ricard; Ventosa Molina, Jordi; Jofre Roca, Lluís; Lehmkuhl Barba, Oriol; Pérez Segarra, Carlos David (Elsevier, 2019-08-15)
    Article
    Restricted access - publisher's policy
    The development and assessment of an efficient parallelization method for the evaluation of reaction rates in combustion simulations is presented. Combustion simulations where the finite-rate chemistry model is employed ...
  • Thermal and fluid dynamic analysis of Direct Steam Generation Parabolic Trough Collectors 

    Ferchichi, Souha; Kessentini, Hamdi; Morales Ruíz, Sergio; Rigola Serrano, Joaquim; Bouden, Chiheb; Oliva Llena, Asensio (Elsevier, 2019-09-15)
    Article
    Restricted access - publisher's policy
    Direct Steam Generation (DSG) has attracted considerable attention in comparison with conventional technologies based on Heat Transfer Fluids (HTF) for electricity generation due to its higher temperatures. In this context, ...
  • A level-set model for mass transfer in bubbly flows 

    Balcázar Arciniega, Néstor; Antepara Zambrano, Óscar; Rigola Serrano, Joaquim; Oliva Llena, Asensio (2019-08-01)
    Article
    Restricted access - publisher's policy
    A level-set model is presented for simulating mass transfer or heat transfer in two-phase flows. The Navier-Stokes equations and mass transfer (or heat transfer) equation are discretized using a finite volume method on a ...
  • 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
    Restricted access - publisher's policy
    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 ...

View more