Enviaments recents

  • Extensional channel flow revisited: a dynamical systems perspective 

    Marqués Truyol, Francisco; Meseguer Serrano, Álvaro; Mellibovsky Elstein, Fernando; Weidman, Patrick (2017-06-07)
    Article
    Accés obert
    Extensional self-similar flows in a channel are explored numerically for arbitrary stretching–shrinking rates of the confining parallel walls. The present analysis embraces time integrations, and continuations of steady ...
  • Nonsingular black holes, the cosmological constant, and asymptotic safety 

    Torres Herrera, Ramon (2017-07-15)
    Article
    Accés obert
    Quantum gravitational effects in black hole spacetimes with a cosmological constant ¿ are considered. The effective quantum spacetimes for the black holes are constructed by taking into account the renormalization group ...
  • Meteodiversity: a new concept for quantifying meteorological diversity 

    Mazón Bueso, Jordi; Pino González, David (Wiley-Blackwell, 2017-05-10)
    Article
    Accés restringit per política de l'editorial
    Inspired by the concept of biodiversity used by biologists and ecologists, the concept of meteodiversity is proposed as a method of characterising the variety of meteorological phenomena in a defined area within a specified ...
  • Self-organized kilometer-scale shoreline sand wave generation: sensitivity to model and physical parameters 

    Idier, Déborah; Falqués Serra, Albert; Rohmer, Jérémy; Arriaga García, Jaime Alonso (2017-09-19)
    Article
    Accés obert
    The instability mechanisms for self-organized kilometer-scale shoreline sand waves have been extensively explored by modeling. However, while the assumed bathymetric perturbation associated with the sand wave controls the ...
  • Modeling the long-term diffusion and feeding capability of a mega-nourishment 

    Arriaga García, Jaime Alonso; Rutten, Jantien; Ribas Prats, Francesca; Falqués Serra, Albert; Ruessink, Gerben (2017-03-01)
    Article
    Accés restringit per política de l'editorial
    A morphodynamic model based on the wave-driven alongshore sediment transport, including cross-shore transport in a simplified way and neglecting tides, is presented and applied to the Zandniotor mega-nourishment on the ...
  • Nonsingular black holes, the cosmological constant and asymptotic safety 

    Torres Herrera, Ramon (2017-06-05)
    Article
    Accés obert
    Quantum gravitational effects in black hole spacetimes with a cosmological constant ¿ are considered. The effective quantum spacetimes for the black holes are constructed by taking into account the renormalization group ...
  • Non-singular quantum improved rotating black holes and their maximal extension 

    Torres Herrera, Ramon (2017-06-01)
    Article
    Accés restringit per política de l'editorial
    We add a prescription to the Newman–Janis algorithm in order to use it as a means of finding new extended rotating black hole spacetimes from static spherically symmetric ones. Then, we apply the procedure to a quantum ...
  • Formation mechanisms for self-organized kilometer-scale shoreline sand waves 

    Falqués Serra, Albert; Ribas Prats, Francesca; Idier, Déborah; Arriaga García, Jaime Alonso (2017-05-16)
    Article
    Accés obert
    The feedbacks between morphology and waves through sediment transport are investigated as a source of kilometer-scale shoreline sand waves. In particular, the observed sand waves along Srd. Holmslands Tange, Denmark, are ...
  • Cold outbreaks at the mesoscale in the Western Mediterranean basin: from Raincells to rainbands 

    Mazón Bueso, Jordi; Pino González, David (2017-05-17)
    Article
    Accés obert
    This paper investigates cold outbreaks that form offshore density currents within the whole mesoscale over the Western Mediterranean basin. Reflectivity radar and satellite images are used to detect clouds and precipitation ...
  • The influence of an increase of the Mediterranean Sea Surface Temperature on two nocturnal offshore rainbands: a numerical experiment 

    Mazón Bueso, Jordi; Pino González, David (2017-03-18)
    Article
    Accés obert
    Using the Weather Research and Forecasting (WRF) – Advanced Research WRF (ARW) mesoscale model (WRF–ARW), we investigate how two nocturnal offshore rainbands occurring in the Mediterranean basin are modified in a warmer ...
  • Emergence of spatio-temporal dynamics from exact coherent solutions in pipe flow 

    Ritter, Paul; Mellibovsky Elstein, Fernando; Avila Cañellas, Marc (2016-08-12)
    Article
    Accés obert
    Turbulent-laminar patterns are ubiquitous near transition in wall-bounded shear flows. Despite recent progress in describing their dynamics in analogy to non-equilibrium phase transitions, there is no theory explaining ...
  • On regular rotating black holes 

    Torres Herrera, Ramon; Fayos Vallés, Francisco (2017-01-01)
    Article
    Accés restringit per política de l'editorial
    Different proposals for regular rotating black hole spacetimes have appeared recently in the literature. However, a rigorous analysis and proof of the regularity of this kind of spacetimes is still lacking. In this note ...

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