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Transport in Porous Media

, Volume 78, Issue 2, pp 149–159 | Cite as

Radon Emanation in Partially Saturated Porous Media

  • P. M. AdlerEmail author
  • F. Perrier
Article

Abstract

Radon emanation which is the fraction of radon-222 atoms released in the connected pore space of a porous material, increases when the water content increases because of the low recoil range of this atom in water compared with air. This complex phenomenon is studied using reconstructed porous media and random packings where the phase distribution is obtained by a lattice Boltzmann technique incorporating interfacial tension and wetting. The influence of the pore structure, of the recoil range and of saturation, is systematically studied. The numerical results are in good agreement with data from uranium mine tailings.

Keywords

Two phase Porous media Radon emanation 

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Copyright information

© Springer Science+Business Media B.V. 2008

Authors and Affiliations

  1. 1.UPMC SisypheParis cedex 05France
  2. 2.Equipe de GéomagnétismeInstitut de Physique du Globe de ParisParis Cedex 05France

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