Exploració per tema "Calor--Convecció"

Ara es mostren els items 1-9 de 9

    • Bifurcations to quasiperiodicity of the torsional solutions of convection in rotating fluid spheres: techniques and results 

      Sánchez Umbría, Juan; Net Marcé, Marta (2022-11-07)
      Article
      Accés obert
      The linear stability of the periodic and axisymmetric solutions of the convection in rotating, internally heated, and self-gravitating fluid spheres is presented. The transition to quasiperiodic flows via Neimark–Sacker ...

    • Convectons 

      Alonso Maleta, María Aránzazu; Batiste Boleda, Oriol; Knobloch, Edgar; Mercader Calvo, María Isabel (Springer, 2011-01-01)
      Capítol de llibre
      Accés obert
      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 ...

    • DNS and LES of buoyancy-driven turbulence at high Rayleigh numbers: numerical methods and SGS models 

      Trias Miquel, Francesc Xavier; Álvarez Farré, Xavier; Santos Serrano, Daniel; Gorobets, Andrei; Oliva Llena, Asensio (Springer, 2022)
      Text en actes de congrés
      Accés restringit per política de l'editorial
      Buoyancy-driven flows have always been an important subject of scientific studies with numerous applications in environment and technology.

    • Energy-consistent discretization of viscous dissipation with application to natural convection flows 

      Sanderse, Benjamin; Trias Miquel, Francesc Xavier (European Research Community on Flow, Turbulence, and Conbustion (ERCOFTAC), 2023)
      Text en actes de congrés
      Accés obert
      An energy-consistent formulation of incompressible natural convection flows is proposed. In particular, a discretization of the viscous dissipation term is derived which is consistent with the local kinetic energy equation ...

    • Mixing efficiency across Rayleigh-Taylor and Richtmeyer-Meshkov fronts 

      Redondo Apraiz, José Manuel; Lopez Gonzalez-Nieto, Pilar; Cano Marchante, Jose Leandro; Andrés Garzón, Germán (World Scientific Publishing, 2015-06-03)
      Article
      Accés obert
      Mixing generated by gravitational acceleration and the role of local turbulence measured through multifractal methods is examined in numerical experiments of Rayleigh-Taylor and Richtmyer-Meshkov driven front occurring ...

    • Multiphysics simulation of REMS hot-film anemometer under typical martian atmosphere conditions 

      Kowalski, Lukasz; Castañer Muñoz, Luis María; Domínguez Pumar, Manuel; Jiménez Serres, Vicente (COMSOL, 2010)
      Text en actes de congrés
      Accés obert
      The purpose of this paper is to describe numerical electro-thermal simulations of the REMS wind sensor unit [3] and the results obtained by using COMSOL multiphysics. This device is a hot-film anemometer for 2D wind ...

    • Periodic orbits in tall laterally heated rectangular cavities 

      Net Marcé, Marta; Sánchez Umbría, Juan (2017-02-02)
      Article
      Accés obert
      This study elucidates the origin of the multiplicity of stable oscillatory flows detected by time integration in tall rectangular cavities heated from the side. By using continuation techniques for periodic orbits, it is ...

    • Thermal binary mixture convection in inclined cylindrical containers 

      Alonso Maleta, María Aránzazu; Mercader Calvo, María Isabel; Batiste Boleda, Oriol (2022)
      Text en actes de congrés
      Accés obert
      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 cylindrical cell heated from below and inclined ...

    • Thermocapilarity and radiative heat flux oscillations 

      Redondo Apraiz, José Manuel; Lopez Gonzalez-Nieto, Pilar; Mahjoub, Otman; Ryazantsev, Yuri S.; Garcia Velarde, Manuel (2014)
      Text en actes de congrés
      Accés obert
      We present a detailled experimental study of the thermocapillary motion of an aniline drop in an stably stratified fluid sytem driven by a laser beam. The thermocapillary motion of drops is the result of the temperature ...