Connection between thermophoresis and thermodiffusion in a liquid binary mixture |
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| Authors: | E. Bringuier |
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| Affiliation: | 1. Matériaux et Phénomènes Quantiques (UMR 7162 CNRS) , Université Denis Diderot (Paris 7) , 10 rue Domon et Duquet, case 7021, 75205 Paris Cedex 13, France;2. GeSeC R&3. D, Université Pierre et Marie Curie, 140 rue de Lourmel, 75015?Paris, France eric.bringuier@univ-paris-diderot.fr |
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| Abstract: | In a liquid suspension, thermophoresis is the motion of a suspended particle under a temperature gradient. In a liquid binary mixture, thermodiffusion is the generation of a composition gradient upon application of a temperature gradient. A quantitative connection is established between the two phenomena without making assumptions about their mechanisms. It is shown that Galilean invariance and the choice of a Galilean reference frame play a key role in that connection. The results are not restricted to very dilute suspensions or mixtures. |
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| Keywords: | thermophoresis suspension thermodiffusion binary mixture Galilean invariance |
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