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

  • Advanced techniques for grau area mitigation in DES simulations and their effectes on the subsonic round jet acoustic spectra 

    Duben, Alexey; Ruano Pérez, Jesús; Trias Miquel, Francesc Xavier; Rigola Serrano, Joaquim (2021)
    Conference report
    Restricted access - publisher's policy
    The research dedicated to the investigation of different gray-area mitigation approaches towards accurate aerodynamics and aeroacoustics is presented. The recent modifications of hybrid RANS-LES DDES approach based on ...
  • NUMA-Aware Strategies for the Heterogeneous Execution of SPMV on Modern Supercomputers 

    Álvarez Farré, Xavier; Gorobets, Andrei; Trias Miquel, Francesc Xavier; Oliva Llena, Asensio (2021)
    Conference report
    Open Access
    The sparse matrix-vector product is a widespread operation amongst the scientific computing community. It represents the dominant computational cost in many large-scale simulations relying on iterative methods, and its ...
  • A General Method to Compute Numerical Dispersion Error 

    Ruano Pérez, Jesús; Baez Vidal, Aleix; Rigola Serrano, Joaquim; Trias Miquel, Francesc Xavier (2021)
    Conference report
    Open Access
    This article presents a new methodology to compute numerical dispersion error. The analysis here presented is not restricted to uniform structured meshes nor linear discrete operators as it does not rely on sinusoids to ...
  • On the implementation of flux limiters in algebraic frameworks 

    Valle Marchante, Nicolás; Álvarez Farré, Xavier; Gorobets, Andrei; Castro González, Jesús; Oliva Llena, Asensio; Trias Miquel, Francesc Xavier (2022-02-01)
    Article
    Open Access
    The use of flux limiters is widespread within the scientific computing community to capture shock dis- continuities and are of paramount importance for the temporal integration of high-speed aerodynamics, multiphase flows ...
  • A new general method to compute dispersion errors on Cartesian stretched meshes for both linear and non-linear operators 

    Ruano Pérez, Jesús; Baez Vidal, Aleix; Rigola Serrano, Joaquim; Trias Miquel, Francesc Xavier (2022-02-01)
    Article
    Restricted access - publisher's policy
    The present article presents a new analysis for the dispersion error and the methodology to evaluate it numerically. Here we present the spectral properties of several convective schemes, including non-linear ones, on ...
  • On the Interpolation Problem for the Poisson Equation on Collocated Meshes 

    Santos Serrano, Daniel; Muela Castro, Jordi; Valle Marchante, Nicolás; Trias Miquel, Francesc Xavier (International Centre for Numerical Methods in Engineering (CIMNE), 2021)
    Conference report
    Open Access
    The appearence of unphysical velocities in highly distorted meshes is a common problem in many simulations. In collocated meshes, this problem arises from the interpolation of the pressure gradient from faces to cells. ...
  • NUMA-Aware strategies for the efficient execution of CFD simulations on CPU supercomputers 

    Álvarez Farré, Xavier; Gorobets, Andrei; Trias Miquel, Francesc Xavier; Oliva Llena, Asensio (2021)
    Conference report
    Restricted access - publisher's policy
    The growing variety of computing architectures and the hybridization of high-performance computing systems encourage the research for portable implementations of numerical methods in simulation codes. However, the pursuit ...
  • Energy and exergy analysis of an absorption system with working pairs LiBr-H2O and Carrol-H2O at applications of cooling and heating 

    Zheng, Jian; Castro González, Jesús; Oliva Llena, Asensio; Oliet Casasayas, Carles (2021-12-01)
    Article
    Restricted access - publisher's policy
    In this work, an air-cooled, single effect solar-driven absorption system is being evaluated from the point of view of 1 and 2 thermodynamic principles for two different applications: absorption chiller and heat pump. One ...
  • First test field performance of highly efficient flat plate solar collectors with transparent insulation and low-cost overheating protection 

    Kizildag, Deniz; Castro González, Jesús; Kessentini, Hamdi; Schillaci, Eugenio; Rigola Serrano, Joaquim (2022-04)
    Article
    Restricted access - publisher's policy
    The present work demonstrates prototypes of highly efficient flat plate solar thermal collectors prototypes based on transparent insulation materials (TIM) technology for efficiency improvement and an overheating protection ...
  • On estimating the interface normal and curvature in PLIC-VOF approach for 3D arbitrary meshes 

    Amani, Ahmad; Muela Castro, Jordi; Schillaci, Eugenio; Castro González, Jesús (2022-01-03)
    Article
    Open Access
    Volume of fluid (VOF) method with its Piecewise Linear Interface Calculation (PLIC) reconstruction algorithm is one of the most popular approaches in numerical simulation of interfacial flows with a wide range of applications ...
  • Three-dimensional direct numerical simulation (dns) Of taylor bubbles rising in non-Newtonian environments 

    Amani, Ahmad; Castro González, Jesús; Oliva Llena, Asensio (International Centre for Numerical Methods in Engineering (CIMNE), 2021)
    Conference report
    Open Access
    Three-dimensional numerical simulation of Taylor gas bubbles as primary unites of slug flow patterns rising in non-Newtonian environments is performed in the context of Direct Numerical Simulation (DNS) of the governing ...
  • Unstructured Level-Set Method For Saturated Liquid-Vapor Phase Change 

    Balcázar Arciniega, Néstor; Rigola Serrano, Joaquim; Oliva Llena, Asensio (International Centre for Numerical Methods in Engineering (CIMNE), 2021)
    Conference report
    Open Access
    A novel conservative level-set method for saturated liquid-vapor phase change on unstruc-tured meshes is introduced. Transport equations are discretized by the finite-volume method on col-located unstructured grids. Mass ...

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