Ara es mostren els items 49-60 de 60

    • On the boundary layer development and heat transfer from a sphere at moderate Reynolds numbers 

      Rodríguez Pérez, Ivette María; Lehmkuhl Barba, Oriol; Soria Guerrero, Manel; Gómez, Samuel; Domínguez Pumar, Manuel; Kowalski, Lukasz (2018)
      Text en actes de congrés
      Accés restringit per política de l'editorial
      Direct and large-eddy numerical simulations have been performed for a heated sphere at Reynolds numbers 200, 300, 500, 750, 1000 and 104, in the context of the development of a spherical wind sensor for Mars atmosphere ...
    • On the effects of free-stream turbulence intensity in the fluid flow and heat transfer from a sphere at subcritical Reynolds numbers 

      Rodríguez Pérez, Ivette María; Lehmkuhl Barba, Oriol; Soria Guerrero, Manel; Gomez, Samuel; Domínguez Pumar, Manuel; Kowalski, Lukasz (2018)
      Comunicació de congrés
      Accés restringit per política de l'editorial
      In this work, the effect of the free-stream turbu-lence on the heat transfer and the near wake behind a sphere is studied at moderate Reynolds numbers of ¿¿ ¿ ¿¿¿¿ and ¿¿ ¿ ¿¿¿. Turbulence delays the sep-aration of the ...
    • On the effects of the free-stream turbulence on the heat transfer from a sphere 

      Rodríguez Pérez, Ivette María; Lehmkuhl Barba, Oriol; Soria Guerrero, Manel (2021-01)
      Article
      Accés obert
      Free-stream turbulence is present in many engineering applications and is known to affect both bluffbody aerodynamics and heat transfer. In this work, its effects on the heat transfer and the near wake behind a sphere are ...
    • On the flow and passive noise control of an open cavity at Re=5000 

      Martín Navarrete, Rocío; Soria Guerrero, Manel; Rodríguez Pérez, Ivette María; Lehmkuhl Barba, Oriol (Springer, 2021-04-19)
      Article
      Accés obert
      The interaction of turbulent flows with the external structure of ground vehicles generates uncomfortable noise and a lot of attention is devoted to find new mechanisms for its suppression. The present work is concerned ...
    • Parallel multigrid algorithms for computational fluid dynamics and heat transfer 

      Soria Guerrero, Manel (Universitat Politècnica de Catalunya, 2000-07-18)
      Tesi
      Accés obert
      The main purpose of the dissertation is to contribute to the development of numerical techniques for computational heat transfer and fluid flow, suitable for low cost (loosely coupled) parallel computers. It is focused on ...
    • Parameter-free modelling of a turbulent differentially heated cavity with Rayleigh number up to 10e11 

      Trias Miquel, Francesc Xavier; Soria Guerrero, Manel; Gorobets, Andrei; Verstappen, R.W.C.P. (2009-09-14)
      Comunicació de congrés
      Accés restringit per política de l'editorial
      Since direct numerical simulations of natural convection in a differentially heated cavity cannot be performed at high Rayleigh numbers, a dynamically less complex mathematical formulation is sought. In the quest for such ...
    • Parameter-free symmetry-preserving regularization modeling of a turbulent differentially heated cavity 

      Trias Miquel, Francesc Xavier; Verstappen, R.W.C.P.; Gorobets, Andrei; Soria Guerrero, Manel; Oliva Llena, Asensio (2010-06-23)
      Article
      Accés restringit per política de l'editorial
      Since direct numerical simulations of buoyancy driven flows cannot be computed at high Rayleigh numbers, a dynamically less complex mathematical formulation is sought. In the quest for such a formulation, we consider ...
    • Parameter-free symmetry-preserving regularization modelling of turbulent natural convection flows 

      Trias Miquel, Francesc Xavier; Verstappen, R.W.C.P.; Soria Guerrero, Manel; Oliva Llena, Asensio (2009)
      Text en actes de congrés
      Accés obert
      Since direct numerical simulations of natural convection flows cannot be performed at high Ra-numbers, a dynamically less complex mathematical formulation is sought. In the quest for such a formulation, we consider ...
    • Towards a quantitative understanding of Robert's Rising Thermal Bubble as a benchmark for 3D atmospheric codes 

      Andrés Carcasona, Marc; Soria Guerrero, Manel; García Melendo, Enrique José; Miró Jané, Arnau (American Meteorological Society, 2023-02-01)
      Article
      Accés obert
      Robert’s rising thermal bubble (RRTB) is a benchmark case used to assess atmospheric models. In this paper, RRTB is further studied both using an analytical and a numerical approach, improving to a greater extent the ...
    • Turbulent flow around a wall-mounted cube: direct numerical simulation and regularization modelling. 

      Trias Miquel, Francesc Xavier; Gorobets, Andrei; Verstappen, R.W.C.P.; Soria Guerrero, Manel; Oliva Llena, Asensio (2009)
      Comunicació de congrés
      Accés restringit per política de l'editorial
      Since direct numerical simulation (DNS) cannot be performed at high Reynolds number, a dynamically less complex mathematical formulation is sought. In the quest for such formulation, we consider regularization (smooth ...
    • Turbulent natural convection in an open cavity: a numerical study 

      Chiva Segura, Jorge; Soria Guerrero, Manel; Oliva Llena, Asensio; Lehmkuhl Barba, Oriol (2009)
      Comunicació de congrés
      Accés restringit per política de l'editorial
      In this paper three-dimensional turbulent natural convection heat transfer in a simplified solar receiver open cavity is studied. Smagorinsky-LES (Large Eddy Simulation) model is chosen for turbulence flow computation. The ...
    • Tychonis: a model-based approach to define and search for geometric events in space 

      Llopis, Marcel; Soria Guerrero, Manel; Franch Gutiérrez, Javier (2021-06)
      Article
      Accés obert
      Space missions need software in order to be aware of the occurrence of geometric events in different phases of their project lifecycle. However, current software packages that provide capabilities to search for geometric ...