Exploració per tema "Heat--Convection, Natural"

Ara es mostren els items 1-7 de 7

    • Buoyancy reversal in cloud-top mixing layers 

      Mellado González, Juan Pedro; Stevens, Bjorn; Schmidt, Heiko; Peters, Norbert (2009-04-28)
      Article
      Accés obert
      A theoretical and numerical small-scale study of the evaporative cooling phenomenon that might appear in the stratocumulus-topped boundary layers is presented. An ideal configuration of a cloud-top mixing layer is ...

    • Convectons in periodic and bounded domains 

      Mercader Calvo, María Isabel; Batiste Boleda, Oriol; Alonso Maleta, María Aránzazu; Knobloch, Edgar (2009-12-21)
      Article
      Accés restringit per política de l'editorial
      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 ...

    • Non-Oberbeck-Boussinesq natural convection in a tall differentially heated cavity 

      Kizildag, Deniz; Ventosa, Jordi; Rodríguez Pérez, Ivette María; Oliva Llena, Asensio (2010)
      Text en actes de congrés
      Accés obert
      Turbulent flow in a water-filled rectangular parallelepiped tank of an integrated solar collector is analyzed by means of a set of two and three dimensional simulations. The geometry and the working conditions of the ...

    • On the role of large-scale updrafts and downdrafts in deviations from Monin-Obukhov similarity theory in free convection 

      Fodor, Katherine; Mellado González, Juan Pedro; Wilczek, Michael (2019-05-29)
      Article
      Accés obert
      We investigate by means of direct numerical simulation how large-scale circulations produce deviations from Monin–Obukhov similarity theory (MOST) in the limit of free convection, disentangling the role of large-scale ...

    • 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
      Accés obert
      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 ...

    • Spontaneous generation of a swirling plume in a stratified ambient 

      Marqués Truyol, Francisco; López Moscat, Juan Manuel (2014-12-01)
      Article
      Accés restringit per política de l'editorial
      The transition from laminar to complex spatio-temporal dynamics of plumes due to a localized buoyancy source is studied numerically. Several experiments have reported that this transition is sensitive to external perturbations. ...

    • Thermal effects of nonuniform heating in a nanofluid-filled annulus: Buoyant transport versus entropy generation 

      Sankar, Mani; Kumara Swamy, H. A.; Do, Younghae; Altmeyer, Sebastian Andreas (Wiley, 2021-09-09)
      Article
      Accés obert
      The primary challenge in the majority of heat transfer applications, in view of design perspective, is to maximize the thermal transport with the minimum generation of entropy. This paper addresses the numerical investigation ...