2011•The Philosophical Magazine A Journal of Theoretical Experimental and Applied PhysicsOpen access
Connection between thermophoresis and thermodiffusion in a liquid binary mixture
E. Bringuier
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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.