Now showing items 54-60 of 60

    • Turbulence and fire-spotting effects into wild-land fire simulators 

      Kaur, I.; Mentrelli, A.Autoridad BCAM; Bosseur, F.; Filippi, J.-B.; Pagnini, G.Autoridad BCAM (2016-01-01)
      This paper presents a mathematical approach to model the effects and the role of phenomena with random nature such as turbulence and fire-spotting into the existing wildfire simulators. The formulation proposes that the ...
    • Two-particle anomalous diffusion: Probability density functions and self-similar stochastic processes 

      Pagnini, G.Autoridad BCAM; Mura, A.; Mainardi, F. (2013-12-31)
      Two-particle dispersion is investigated in the context of anomalous diffusion. Two different modeling approaches related to time subordination are considered and unified in the framework of self-similar stochastic processes. ...
    • Universal spectral features of different classes of random diffusivity processes 

      Sposini, V.; Grebenkov, D.S.; Metzler, R.; Oshanin, G.; Seno, F. (2020-06-26)
      Stochastic models based on random diffusivities, such as the diffusing- diffusivity approach, are popular concepts for the description of non-Gaussian diffusion in heterogeneous media. Studies of these models typically ...
    • Velocity and energy distributions in microcanonical ensembles of hard spheres 

      Scalas, E.Autoridad BCAM; Gabriel, A.T.; Martin, E.; Germano, G. (2015-12-31)
      In a microcanonical ensemble (constant NVE, hard reflecting walls) and in a molecular dynamics ensemble (constant NVEPG, periodic boundary conditions) with a number N of smooth elastic hard spheres in a d-dimensional volume ...
    • Wildfire propagation modelling 

      Pagnini, G.Autoridad BCAM; Egorova, V.; Trucchia, A.; Mentrelli, A.Autoridad BCAM; Kaur, I. (2018)
      Wildfires are a concrete problem with a strong impact on human life, property and the environment, because they cause disruption and are an important source of pollutants. Climate change and ...
    • Wildland fire propagation modeling: fire-spotting parametrisation and energy balance 

      Egorova, V.; Pagnini, G.Autoridad BCAM; Trucchia, A. (2017-07-04)
      Present research concerns the physical background of a wild-fire propagation model based on the split of the front motion into two parts - drifting and fluctuating. The drifting part is solved by the level set method and ...
    • Wildland fire propagation modelling 

      Egorova, V.; Pagnini, G.Autoridad BCAM; Trucchia, A. (2017-12)
      Wildfire propagation modelling is a challenging problem due to its complex multi-scale multi-physics nature. This process can be described by a reaction- diffusion equation based on the energy balance principle. Alternative ...