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Jens Eggers

Jens Eggers. Hydrodynamic theory of coating . …with Bruno Andreotti, Marc Fermigier, Jacco Snoeijer, Johanna Ziegler. Dynamical wetting transition. continuous transition. discontinuous transition. Deraguin+Levi 1964. de Gennes 1986. apparent contact angle at the transition?.

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Jens Eggers

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  1. Jens Eggers Hydrodynamic theory of coating …with Bruno Andreotti, Marc Fermigier, Jacco Snoeijer, Johanna Ziegler

  2. Dynamical wetting transition continuous transition discontinuous transition Deraguin+Levi 1964 de Gennes 1986 apparent contact angle at the transition?

  3. Small scale physics Huh and Scriven’s paradox: moving contact line stationary h U

  4. Lubricationequations nm h(x) note additional parameter s.t. gravity viscous y g liquid bath x

  5. curvature Matching:Pull! g U<Uc no overlap! l : microscopic length match! liquid bath g U>Uc 0 liquid bath outer meniscus compare matching impossible!

  6. curvature Critical speed “Cox-Voinov” 0 matching condition

  7. Wetting transition • Derjaguin+Levi 1964: at transition Delon et al., JFM 2007 transient experiment:

  8. Beyond the transition h after apparent contact line x sim theory before h x contact line

  9. Another transition plate angle Ziegler et al., EPJ `09

  10. Wetting transition new film solution! Delon et al., JFM 2007

  11. The Landau Levich Derjaguin film LL-equation II I: bath

  12. The dimple! balance includes gravity! III II I: bath

  13. A range of new solutions

  14. Phase diagram new thick film solutions! partial wetting Experiment: complete wetting

  15. The film profile new thick film LLD film theory theory the dimple! bath Snoeijer et al., PRL `08

  16. The big picture 1/2 Derjaguin 1/2 2/3 1 so far!

  17. A fun movie made in Bristol Bristol Evening Post …work with Philippe Brunet, Robert Deegan

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