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Dispersion in Porous Media

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Part of the NATO ASI Series book series (NSSE,volume 152)

Abstract

The molecular diffusivity of a tracer species in a given medium is a measure of the average spread of the tracer due to fluctuations in its velocity on the molecular scale. In a medium that is heterogeneous on a macroscopic scale, a tracer will experience an additional spreading due to variations in its velocity as it moves through the heterogeneous medium. This spreading due to macroscale velocity fluctuations is known as dispersion and is the subject of this article.

Keywords

  • Porous Medium
  • Effective Diffusivity
  • Velocity Fluctuation
  • Dispersion Coefficient
  • Anomalous Diffusion

These keywords were added by machine and not by the authors. This process is experimental and the keywords may be updated as the learning algorithm improves.

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© 1988 Kluwer Academic Publishers

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Brady, J.F., Koch, D.L. (1988). Dispersion in Porous Media. In: Guyon, E., Nadal, JP., Pomeau, Y. (eds) Disorder and Mixing. NATO ASI Series, vol 152. Springer, Dordrecht. https://doi.org/10.1007/978-94-009-2825-1_8

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  • DOI: https://doi.org/10.1007/978-94-009-2825-1_8

  • Publisher Name: Springer, Dordrecht

  • Print ISBN: 978-90-247-3789-5

  • Online ISBN: 978-94-009-2825-1

  • eBook Packages: Springer Book Archive