Ciencias,UNAM

Browsing Física by Author "PeraltaFabi, R"

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Browsing Física by Author "PeraltaFabi, R"

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  • Bubbles in search for pressure minima
    Chicharro, R; PeraltaFabi, R (1996)
  • Fountain effect in a centrifugal pump
    Chicharro, R; PeraltaFabi, R; SánchezJacome, JR (1996)
  • On arching in dry granular materials
    PeraltaFabi, R; Malaga, C; Rechtman, R (1997)
    Arching is studied experimentally and theoretically in a quasi two dimensional system. A model based on a stochastic coupled map lattice is proposed to characterize arching in a vertical and planar stack of similar beads. ...
  • On the dynamics of avalanches for 2D systems
    PeraltaFabi, R; Morales, E; RomeroRochin, V (1997)
    Avalanches in a two-dimensional dry granular system, the rotating drum setup, are studied in detail. The distribution of angles at which avalanches initiate and terminate, as well as those for time between avalanches, are ...
  • On the stability of the Jeffery-Hamel flow
    Uribe, FJ; DiazHerrera, E; Bravo, A; PeraltaFabi, R (1997)
    The Jeffery-Hamel flow is analyzed by making use of a mechanical analogy. The solutions are generated by a finite element method, for the corresponding least action principle and are valid for any width of the channel. ...
  • Segregation in dry granular systems
    Chicharro, R; PeraltaFabi, R; Velasco, RM (1997)
    Segregation in rotating drums is studied experimentally in two and three dimensions with unexpected results. In the first case, we find that the spatial grain distribution oscillates between uniform and segregated states ...
  • Testing predictability criteria in avalanches
    Morales, E; PeraltaFabi, R; RomeroRochin, V (1996)
    We study a cellular automaton that presents a behavior similar to that of avalanches in sand piles. The size distribution of these events presents a clear separation between small and large avalanches

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