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  • A finite volume method to solve the frost growth using dynamic meshes 

    Bartrons Casademont, Eduard; Oliet Casasayas, Carles; Gutiérrez Álvarez, Enrique; Naseri, Alireza; Pérez Segarra, Carlos David (2018-09-01)
    Artículo
    Acceso restringido por política de la editorial
    The physical mechanisms of frost formation have been widely studied, yet much empirism is still needed in numerical approaches. Indeed, accurate simulations of frost growth can be reached by setting up a specific combination ...

  • Optimising the Termofluids CFD code for petascale simulations 

    Borrell Pol, Ricard; Chiva Segura, Jorge; Lehmkuhl Barba, Oriol; Oyarzun Altamirano, Guillermo; Rodríguez Pérez, Ivette María; Oliva Llena, Asensio (2016)
    Artículo
    Acceso abierto
    This paper presents some recent efforts carried out on the expansion of the scalability of TermoFluids multi-physics Computational Fluid Dynamics (CFD) code, aiming to achieve petascale capacity for a single simulation. ...

  • A simple optimization approach for the insulation thickness distribution in household refrigerators 

    Trias Miquel, Francesc Xavier; Oliet Casasayas, Carles; Rigola Serrano, Joaquim; Pérez Segarra, Carlos David (Elsevier, 2018-07-03)
    Artículo
    Acceso restringido por política de la editorial
    Determination of the optimal insulation thickness is of great relevance in many thermal engineering applications. In this paper, a simple optimization strategy based on the Lagrange multipliers is presented. The optimal ...

  • LES-based study of the roughness effects on the wake of a circular cylinder from subcritical to transcritical Reynolds numbers 

    Rodríguez Pérez, Ivette María; Lehmkuhl Barba, Oriol; Piomelli, Ugo; Chiva Segura, Jorge; Borrell Pol, Ricard; Oliva Llena, Asensio (2017-10-27)
    Artículo
    Acceso restringido por política de la editorial
    This paper investigates the effects of surface roughness on the flow past a circular cylinder at subcritical to transcritical Reynolds numbers. Large eddy simulations of the flow for sand grain roughness of size k/D = 0.02 ...

  • New parallel method for adjacent disconnected unstructured 3D meshes 

    Muela Castro, Jordi; Martínez Valdivieso, Daniel; Lehmkuhl Barba, Oriol; Pérez Segarra, Carlos David; Oliva Llena, Asensio (2016-07-14)
    Artículo
    Acceso abierto
    A new parallel method for simulations with non-overlapping disconnected mesh domains but adjacent boundaries is presented and studied. This technique allows simulations using 3D unstructured meshes that are independent.

  • A semi-implicit coupling technique for fluid–structure interaction problems with strong added-mass effect 

    Naseri, Alireza; Lehmkuhl Barba, Oriol; González Acedo, Ignacio; Bartrons Casademont, Eduard; Pérez Segarra, Carlos David; Oliva Llena, Asensio (2018-07-01)
    Artículo
    Acceso restringido por política de la editorial
    This paper is concerned with the numerical simulation of fluid–structure interaction problems involving an incompressible viscous flow and an elastic structure. A semi-implicit coupling technique is presented which strongly ...

  • Mini-grid electricity service based on local agricultural residues: Feasibility study in rural Ghana 

    Arranz Piera, Pol; Kemausuor, Francis; Darkwah, Lawrence; Edjekumhene, Ishmael; Cortés, Joan; Velo García, Enrique (2018-06-15)
    Artículo
    Acceso restringido por política de la editorial

  • Epoxy-thiol systems filled with boron nitride for high thermal conductivity applications 

    Hutchinson, John M.; Román Concha, Frida Rosario; Folch, Adrià (2018-03-20)
    Artículo
    Acceso abierto
    An epoxy-thiol system filled with boron nitride (BN), in the form of 80 µm agglomerates, has been investigated with a view to achieving enhanced thermal conductivity. The effect of BN content on the cure reaction kinetics ...

  • Preparation and characterization of dual-curable off-stoichiometric amine-epoxy thermosets with latent reactivity 

    Konuray, Ali Osman; Areny, Núria; Morancho Llena, José María; Fernández Francos, Xavier; Serra Albet, Maria Àngels; Ramis Juan, Xavier (Elsevier, 2018-06-20)
    Artículo
    Acceso restringido por política de la editorial
    A new family of dual-curable poly(hydroxyamine)-poly(ether) thermosets based on off-stoichiometric amine-epoxy formulations has been prepared and characterized. The first curing stage was a selflimiting click epoxy-amine ...

  • Curing of off-stoichiometric amine–epoxy thermosets 

    Morancho Llena, José María; Ramis Juan, Xavier; Fernández Francos, Xavier; Salla Tarragó, José María; Konuray, Ali Osman; Serra Albet, Maria Àngels (Springer, 2018-07)
    Artículo
    Acceso restringido por política de la editorial
    The kinetics of the epoxy–amine polycondensation and the epoxy homopolymerization in off-stoichiometric epoxy/amine formulations with excess of epoxy groups, and in the presence of an anionic initiator have been investigated. ...

  • New allyl-functional catalytic comonomers for sequential thiol-Michael and radical thiol-ene reactions 

    Konuray, Ali Osman; Fernández Francos, Xavier; Ramis Juan, Xavier; Serra Albet, Maria Àngels (Elsevier, 2018-02-28)
    Artículo
    Acceso restringido por política de la editorial
    Soft poly(thioether) thermosets have been synthesized by employing a two-step curing procedure based on click chemistry. The first stage of curing is a thiol-Michael addition between acrylates (or methacrylates) and thiols ...

  • Thermoconductive thermosetting composites based on boron nitride fillers and thiol-epoxy matrices 

    Isarn, Isaac; Ramis Juan, Xavier; Ferrando Piera, Francesc; Serra Albet, Maria Àngels (2018-03-07)
    Artículo
    Acceso abierto
    In this work, the effect of the addition of boron nitride (BN) fillers in a thiol-cycloaliphatic epoxy formulation has been investigated. Calorimetric studies put into evidence that the kinetics of the curing has been ...

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