Recent Submissions

  • 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
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    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 ...
  • 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 ...
  • On the flow past a circular cylinder from critical to super-critical Reynolds numbers: Wake topology and vortex shedding 

    Rodríguez Pérez, Ivette María; Lehmkuhl Barba, Oriol; Chiva Segura, Jorge; Borrell Pol, Ricard; Oliva Llena, Asensio (2015-05-13)
    Article
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    Large-eddy simulations (LES) of the flow past a circular cylinder are used to investigate the flow topology and the vortex shedding process at Reynolds numbers Re=2.5×105-8.5×105Re=2.5×105-8.5×105. This range encompasses ...
  • Numerical evaluation of multi-layered solid-PCM thermocline-like tanks as thermal energy storage systems for CSP applications 

    Galione Klot, Pedro Andrés; Pérez Segarra, Carlos David; Rodríguez Pérez, Ivette María; Torras Ortiz, Santiago; Rigola Serrano, Joaquim (2015-05)
    Article
    Open Access
    The two-tank system is the technology used for thermal energy storage (TES) in current concentrating solar power (CSP) plants. Thermocline storage concept has been considered for more than a decade as a possible solution ...
  • Numerical simulation of non-adiabatic capillary tubes. Special emphasis on the near-saturation zone 

    Ablanque Mejía, Nicolás; Oliet Casasayas, Carles; Rigola Serrano, Joaquim; Oliva Llena, Asensio (Elsevier, 2015-04-15)
    Article
    Restricted access - publisher's policy
    The aim of this article is to present a distributed numerical model that simulates the thermal and fluid-dynamic phenomena inside non-adiabatic capillary tubes. The resolution approach is based on a two-phase flow model ...
  • Building proper invariants for eddy-viscosity subgrid-scale models 

    Trias Miquel, Francesc Xavier; Folch, David; Gorobets, Andrei; Oliva Llena, Asensio (2015-06-23)
    Article
    Open Access
    Direct simulations of the incompressible Navier-Stokes equations are limited to relatively low-Reynolds numbers. Hence, dynamically less complex mathematical formulations are necessary for coarse-grain simulations. ...
  • Hygrothermal analysis of characteristic public building rooms before energy efficient retrofitting solutions 

    Souaihi, Oussama; Capdevila, Roser; Lopez, Joan; Lehmkuhl Barba, Oriol; Rigola Serrano, Joaquim (International Building Performance Simulation Association (IBPSA), 2016)
    Conference lecture
    Restricted access - publisher's policy
    In the present paper, a modular, object-oriented and parallel methodology for the multiphysics simulation of buildings is presented. The whole building is modeled as a collection of basic elements (e.g., walls, rooms, ...

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