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Thermal conductivity associated with a bead-bead contact decorated by a liquid bridge

An experimental study based on the response of a chain subjected to thermal cycles

  • Statistical and Nonlinear Physics
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Abstract.

We report an experimental study of the heat transport along a chain of macroscopic beads: at one end, one bead is periodically heated and we record the resulting temperature variations of another bead as a function of position and time. The experimental results show that the chain behaves like a high-order low-pass filter. The measurement of the associated cut-off frequency makes it possible to determine accurately the resistance of the bead-bead contact: we make use of the experimental setup for studying the effects of liquid bridges decorating the bead-bead contacts, which provides important clues for understanding the thermal properties of partially wet granular matter.

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Authors and Affiliations

  1. Laboratoire de Physique de l'ENS de Lyon, 46 Allée d'Italie, 69364, Lyon Cedex 07, France

    J.-C. Géminard, D. Bouraya & H. Gayvallet

Authors
  1. J.-C. Géminard
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  2. D. Bouraya
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  3. H. Gayvallet
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Correspondence to J.-C. Géminard.

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Géminard, JC., Bouraya, D. & Gayvallet, H. Thermal conductivity associated with a bead-bead contact decorated by a liquid bridge. Eur. Phys. J. B 48, 509–517 (2005). https://doi.org/10.1140/epjb/e2006-00004-6

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  • DOI: https://doi.org/10.1140/epjb/e2006-00004-6

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