Recent Submissions

  • Epoxy sol-gel hybrid thermosets 

    Serra Albet, Àngels; Ramis Juan, Xavier; Fernández Francos, Xavier (MDPI AG, 2016-02-03)
    Article
    Open Access
    Sol-gel methodologies are advantageous in the preparation of hybrid materials in front of the conventional addition of nanoparticles, because of the fine dispersion of the inorganic phase that can be reached in epoxy ...
  • Transport energy demand in Andorra. Assessing private car futures through sensitivity and scenario analysis 

    Travesset Baro, Oriol; Ó Gallachóir, Brian P.; Jover Comas, Eric; Rosas Casals, Martí (2016-09)
    Article
    Restricted access - publisher's policy
    This paper presents a model which estimates current car fleet energy consumption in Andorra and forecasts such consumption as a reference scenario. The base-year model is built through a bottom-up methodology using vehicle ...
  • Molecular mobility in hyperbranched polymers and their interaction with an epoxy matrix 

    Román Concha, Frida Rosario; Colomer Vilanova, Pere; Calventus Solé, Yolanda; Hutchinson, John M. (2016-03-01)
    Article
    Open Access
    The molecular mobility related to the glass transition and secondary relaxations in a hyperbranched polyethyleneimine, HBPEI, and its relaxation behaviour when incorporated into an epoxy resin matrix are investigated by ...
  • Sequential curing of off-stoichiometric thiol-epoxy thermosets with a custom-tailored structure 

    Fernández Francos, Xavier; Konuray, Ali Osman; Belmonte, Alberto; de la Flor López, Silvia; Serra Albet, Àngels; Ramis Juan, Xavier (2016-01-01)
    Article
    Open Access
    A new dual-curing system based on sequential thiol-epoxy click polycondensation and epoxy anionic homopolymerization was studied. Formulations of diglycidyl ether of bisphenol A and trimethylolpropane tris(3-mercaptopropionate) ...
  • Particulate immersed boundary method for complex fluid-particle interaction problems with heat transfer 

    Zhang, Hao; Yuan, Haizhuan; Trias Miquel, Francesc Xavier; Yu, Aibing; Tan, Yuanqiang; Oliva Llena, Asensio (2016-01-01)
    Article
    Restricted access - publisher's policy
    In our recent work (Zhang et al., 2015), a Particulate Immersed Boundary Method (PIBM) for simulating fluid-particle multiphase flow was proposed and assessed in both two- and three-dimensional applications. In this study, ...
  • Turbulent flow around a square cylinder at Reynolds number 22,000: A DNS study 

    Trias Miquel, Francesc Xavier; Gorobets, Andrei; Oliva Llena, Asensio (Elsevier, 2015-12-21)
    Article
    Restricted access - publisher's policy
    The turbulent flow around a square cylinder at Reynolds number 22,000 (based on the cylinder diameter and the inflow velocity) is studied by means of direct numerical simulation. An overview of the numerical methods and ...
  • Direct numerical simulation of a fully developed turbulent square duct flow up to Re-tau=1200 

    Zhang, Hao; Trias Miquel, Francesc Xavier; Gorobets, Andrey; Tan, Yuanqiang; Oliva Llena, Asensio (2015-08-01)
    Article
    Restricted access - publisher's policy
    Various fundamental studies based on a turbulent duct flow have gained popularity including heat transfer, magnetohydrodynamics as well as particle-laden transportation. An accurate prediction on the turbulent flow field ...
  • Modelling of storage tanks with immersed heat exchangers 

    Cadafalch Rabasa, Jordi; Carbonell Sánchez, Daniel; Consul Serracanta, Ricard; Ruiz Mansilla, Rafael (2015-02-01)
    Article
    Restricted access - publisher's policy
    A model of a storage tank with an immersed serpentine heat exchanger is described and validated against experimental data available from the literature. The tank is modelled one dimensionally using the multi-node approach ...
  • Numerical analysis of the turbulent fluid flow through valves. Geometrical aspects influence at different positions 

    Rigola Serrano, Joaquim; Aljure Osorio, David E.; Lehmkuhl Barba, Oriol; Pérez Segarra, Carlos David; Oliva Llena, Asensio (2015)
    Conference lecture
    Open Access
    The aim of this paper is to carry out a group of numerical experiments over the fluid flow through a valve reed, using the CFD&HT code TermoFluids, an unstructured and parallel object-oriented CFD code for accurate and ...
  • PIBM: Particulate immersed boundary method for fluid-particle interaction problems 

    Zhang, Hao; Trias Miquel, Francesc Xavier; Oliva Llena, Asensio; Yang, Dongmin; Tan, Yuanqiang; Shu, Shi; Sheng, Yong (2015-03-01)
    Article
    Restricted access - publisher's policy
    It is well known that the number of particles should be scaled up to enable industrial scale simulation. The calculations are more computationally intensive when the motion of the surrounding fluid is considered. Besides ...

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