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Books Frontpage Modelo tridimensional de camino aleatorio para un derrame de petróleo
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Features:

  • Pages: 180
  • Format: 12x18 cm
  • Edition Date: 2001
  • Edition: 11112001
  • Language: Castellano.
  • Binding: Microforma.
  • Editorial: UNIV. LAS PALMAS GRAN CANARIA. SERV. PUBL. DIF. CIENTÍF
  • Modelo tridimensional de camino aleatorio para un derrame de petróleo

    Aplicación al derrame producido por el North Cape

  • 9788495792297
  • Authors: Diana Grisolía Santos, Diana Grisolía Santos

  • El petróleo, cuando se introduce en el océano, está sujeto a una serie de procesos físicos, químicos y biológicos. En este trabajo sólo se estudian los procesos físicos que afectan al petróleo, como son su deriva o movimiento debido a corrientes y vientos, su expansión horizontal debido, tanto a la turbulencia oceánica como a dispersión turbulenta, y su introducción en la columna de agua por medio de la llamada dispersión mecánica debida a la rotura de oleaje sobre la mancha, fundamentalmente, aunque la turbulencia oceánica, también contribuye a dicho proceso. Para ello, se ha desarrollado un modelo lagrangiano que consiste en el seguimiento de partículas a lo largo del tiempo. Este modelo lagrangiano utiliza el método de camino aleatorio, que nos dice que la posición de cada una de esas partículas es una variable estocástica y que está descrita por la ecuación de Langevin. Abstract The oil, when it is introduced in the ocean is subjected to different physical, chemical, and biological processes. This work only focuses its attention on the physical processes concerning the oil’s insertion into the ocean. Those processes are mainly three. The first one deals with its movement due to the presence of wind and water currents. The second one is related to its horizontal expansion caused not only by the oceanic turbulence but also by the turbulent dispersion. The last one tries to explain its introduction into the water column by means of the mechanical dispersion due to, basically, the breaking swell over the spot, despite the oceanic turbulence, which contributes to this process. For doing that, a lagrangian model has been developed, consisting in the monitoring of the particles along the decades. This model uses a method of random walk that explains that the position of each particle is a stochastic variable and it is described by Langevin in his equation.
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