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Special Topics

EPJ E Colloquium - European Space Agency experiments on thermodiffusion of fluid mixtures in space

Diffusive processes are ubiquitous in daily life and in natural processes, playing a key role in the transformation and mixing of fluid mixtures, and there is considerable scientific and industrial interest in such mixing processes. One consequence of diffusion is the development of non-equilibrium fluctuations in liquid mixtures, particularly when fluids are exposed to a thermal gradient. This is easier to observe in weightlessness, as gravity dampens this phenomenon on Earth especially for large fluctuations.

A new Colloquium paper published in EPJE describes the European Space Agency (ESA) experiments devoted to the study of thermodiffusion of fluid mixtures in a microgravity environment, where sedimentation and convection do not affect the mass flow induced by the Soret effect. It first describes the experiments performed on binary mixtures in the IVIDIL and GRADFLEX experiments. Then, further experiments on ternary mixtures and complex fluids performed in DCMIX and planned in the context of the NEUF-DIX project are presented. Finally, details are given of the multi-component mixtures studied in the SCCO project.

Managing Editors
Anne Ruimy (EDP Sciences) and Sabine Lehr (Springer-Verlag)
Dear Sabine and Isabelle,
Thank you so much for all your help and excellent work you did on the EPJ ST volume "Nonlinear Dynamics of Deterministic and Stochastic Systems: Unraveling Complexity". This was a great experience and collaboration.

Alexander Neiman (on behalf of the guest editors), Ohio University, Athens, USA
Editor EPJ Special Topics 222/10, 2013

ISSN: 1951-6355 (Print Edition)
ISSN: 1951-6401 (Electronic Edition)

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