Now showing items 1-18 of 18

  • An efficient spectral code for incompressible flows in cylindrical geometries 

    Mercader Calvo, María Isabel; Batiste Boleda, Oriol; Alonso Maleta, María Aránzazu (2010-02)
    Article
    Restricted access - publisher's policy
    An efficient and accurate numerical scheme is proposed to solve the incompressible Navier–Stokes equations in a bounded cylinder. The scheme is based on a projection method formulated in primitive variables to maintain the ...
  • Codimension-2 Bifurcations in Binary-Mixture Convection 

    Meca Álvarez, Esteban; Mercader Calvo, María Isabel; Ramírez de la Piscina Millán, Laureano (2010)
    Conference report
    Restricted access - publisher's policy
  • Convectons 

    Alonso Maleta, María Aránzazu; Batiste Boleda, Oriol; Knobloch, Edgar; Mercader Calvo, María Isabel (Springer, 2011-01-01)
    Part of book or chapter of book
    Open Access
    A horizontal layer containing a miscible mixture of two fluids can generate dissipative solitons called convectons when heated from below. The physics of the system leading to this behavior is explained, and the properties ...
  • Convectons, anticonvectons and multiconvectons in binary fluid convection 

    Mercader Calvo, María Isabel; Batiste Boleda, Oriol; Alonso Maleta, María Aránzazu; Knobloch, Edgar (2011-01-25)
    Article
    Open Access
    Binary fluid mixtures with a negative separation ratio heated from below exhibit steady spatially localized states called convectons for supercritical Rayleigh numbers. Numerical continuation is used to compute such states ...
  • Convectons in periodic and bounded domains 

    Mercader Calvo, María Isabel; Batiste Boleda, Oriol; Alonso Maleta, María Aránzazu; Knobloch, Edgar (2009-12-21)
    Article
    Restricted access - publisher's policy
    Numerical continuation is used to compute spatially localized convection in a binary fluid with no-slip laterally insulating boundary conditions and the results are compared with the corresponding ones for periodic boundary ...
  • Dissipative solitons in binary fluid convection 

    Mercader Calvo, María Isabel; Batiste Boleda, Oriol; Alonso Maleta, María Aránzazu; Knobloch, Edgar (American Institute of Mathematical Sciences, 2011-10-01)
    Article
    Restricted access - publisher's policy
    A horizontal layer containing a miscible mixture of two fluids can produce dissipative solitons when heated from below. The physics of the system is described, and dissipative solitons are computed using numerical continuation ...
  • Effect of small inclination on binary convection in elongated rectangular cells 

    Mercader Calvo, María Isabel; Batiste Boleda, Oriol; Alonso Maleta, María Aránzazu; Knobloch, Edgar (American Institute of Physics (AIP), 2019-02-26)
    Article
    Open Access
    We analyze the effect of a small inclination on the well-studied problem of two-dimensional binary fluid convection in a horizontally extended closed rectangular box with a negative separation ratio, heated from below. The ...
  • Examen Final 

    Canal Bienzobas, Fernando; Dios Otín, Víctor Federico; Mercader Calvo, María Isabel; Net Marcé, Marta (Universitat Politècnica de Catalunya, 2013-12-04)
    Exam
    Restricted access to the UPC academic community
  • Localized pinning states in closed containers: homoclinic snaking without bistability 

    Mercader Calvo, María Isabel; Batiste Boleda, Oriol; Alonso Maleta, María Aránzazu; Knobloch, Edgar (2009-08)
    Article
    Open Access
    Binary mixtures with a negative separation ratio are known to exhibit time-independent spatially localized convection when heated from below. Numerical continuation of such states in a closed two-dimensional container with ...
  • Natural convection in a horizontal cylinder with axial rotation 

    Sánchez Casals, Odalys de la Caridad; Mercader Calvo, María Isabel; Batiste Boleda, Oriol; Alonso Maleta, María Aránzazu (AMER PHYSICAL SOC, 2016-06-23)
    Article
    Open Access
    We study the problem of thermal convection in a laterally heated horizontal cylinder rotating about its axis. A cylinder of aspect ratio Gamma = H/2R = 2 containing a small Prandtl number fluid (sigma = 0.01) representative ...
  • Numerical simulation of the genesis of superhighway convection in a slightly inclined layer of a binary liquid mixture 

    Alonso Maleta, María Aránzazu; Mercader Calvo, María Isabel; Batiste Boleda, Oriol (2015)
    Conference report
    Open Access
    Convection in a fluid layer is affected by its orientation with respect to the gravitational field. In the present work, we investigate numerically pattern selection in a vertical cylindrical cell heated from below for ...
  • On the determination of diffusion coefficients in two-component alloys and doped semiconductors: several implications concerning the International Space Station 

    Sánchez Meneses, O.; Ruiz Martí, Xavier; Pujalte, Mónica; Mercader Calvo, María Isabel; Batiste Boleda, Oriol; Gavaldà, Josefina (2015-07-01)
    Article
    Open Access
    The accurate determination of mass diffusion coefficients is a technologically relevant problem that has implications on the modelling and control of material processes such as crystal growth and casting. It is also important ...
  • Pattern selection near the onset of convection in binary mixtures in cylindrical cells 

    Alonso Maleta, Arantxa; Mercader Calvo, María Isabel; Batiste Boleda, Oriol (2014-08-01)
    Article
    Open Access
    We report numerical investigations of three-dimensional pattern formation of binary mixtures in a vertical cylindrical container heated from below. Negative separation ratio mixtures, for which the onset of convection ...
  • Secondary flows in a laterally heated horizontal cylinder 

    Mercader Calvo, María Isabel; Sánchez Casals, Odalys de la Caridad; Batiste Boleda, Oriol (2014-01-01)
    Article
    Open Access
    In this paper we study the problem of thermal convection in a laterally heated, finite, horizontal cylinder. We consider cylinders of moderate aspect ratio (height/diameter approximate to 2) containing a small Prandtl ...
  • Time-dependent patterns in quasivertical cylindrical binary convection 

    Alonso Maleta, María Aránzazu; Mercader Calvo, María Isabel; Batiste Boleda, Oriol (American Chemical Society (ACS), 2018-02-26)
    Article
    Open Access
    This paper reports on numerical investigations of the effect of a slight inclination a on pattern formation in a shallow vertical cylindrical cell heated from below for binary mixtures with a positive value of the Soret ...
  • Transitions between symmetric and non-symmetric flow regimes in a laterally heated binary mixture 

    Meca Álvarez, Esteban; Mercader Calvo, María Isabel; Ramírez de la Piscina Millán, Laureano (2010)
    Conference report
    Restricted access - publisher's policy
  • Transitions between symmetric and nonsymmetric regimes in binary-mixture convection 

    Meca Álvarez, Esteban; Mercader Calvo, María Isabel; Ramírez de la Piscina Millán, Laureano (Elsevier, 2015-05-15)
    Article
    Open Access
    We present here a comprehensive picture of the different bifurcations found for small to moderate Rayleigh number in binary-mixture convection with lateral heating and negative separation ratio (S). The present work connects ...
  • Travelling convectons in binary fluid convection 

    Mercader Calvo, María Isabel; Batiste Boleda, Oriol; Alonso Maleta, María Aránzazu; Knobloch, Edgar (2013-05)
    Article
    Open Access
    Binary fluid mixtures with a negative separation ratio heated from below exhibit steady spatially localized states called convectons for supercritical Rayleigh numbers. With no-slip, fixed-temperature, no-mass-flux boundary ...