Jove
Visualize
Contact Us

Related Experiment Videos

Characterizing the microscopic physics near moving contact lines using dynamic contact angle data.

E Ramé1, S Garoff, K R Willson

  • 1National Center for Microgravity Research, c/o NASA Glenn Research Center, MS 110-3, Cleveland, Ohio 44135, USA. sg2e@andrew.cmu.edu

Physical Review. E, Statistical, Nonlinear, and Soft Matter Physics
|November 5, 2004
PubMed
Summary

Researchers studied microscopic fluid dynamics during dynamic wetting. Results show inner region parameters depend on spreading velocity beyond a critical point, suggesting a missing time scale in current models.

Related Concept Videos

You might also read

Related Articles

Articles linked to this work by shared authors, journal, and citation graph.

Sort by
Same author

[Adolescents in the Pediatric Emergency Department: Detection of risk behavior and depression].

Archives de pediatrie : organe officiel de la Societe francaise de pediatrie·2015
Same author

Dynamic wetting with viscous Newtonian and non-Newtonian fluids.

Journal of physics. Condensed matter : an Institute of Physics journal·2011
Same author

Optical characterization of powders: the use of Mie theory and composite media models.

Applied optics·2010
Same author

Fluorescent lifetimes of molecules on silver-island films.

Optics letters·2009
Same author

Excitation spectra of surface-enhanced Raman scattering on silver-island films.

Optics letters·2009
Same author

Optical absorption resonances of dye-coated silver-island films.

Optics letters·2009
JoVE
x logofacebook logolinkedin logoyoutube logo
ABOUT JoVE
OverviewLeadershipBlogJoVE Help Center
AUTHORS
Publishing ProcessEditorial BoardScope & PoliciesPeer ReviewFAQSubmit
LIBRARIANS
TestimonialsSubscriptionsAccessResourcesLibrary Advisory BoardFAQ
RESEARCH
JoVE JournalMethods CollectionsJoVE Encyclopedia of ExperimentsArchive
EDUCATION
JoVE CoreJoVE BusinessJoVE Science EducationJoVE Lab ManualFaculty Resource CenterFaculty Site
Terms & Conditions of Use
Privacy Policy
Policies

Area of Science:

  • Fluid dynamics
  • Wetting phenomena
  • Interface physics

Background:

  • Understanding macroscopic dynamic wetting relies on microscopic fluid flow and interface behavior at the moving contact line.
  • Direct observation of this microscopic physics is challenging, limiting insights into dynamic wetting processes.

Purpose of the Study:

  • To investigate the microscopic physics of spreading silicone fluids.
  • To relate macroscopic dynamic contact angle measurements to microscopic behavior using theoretical models.

Main Methods:

  • Analysis of macroscopic dynamic contact angle data versus Capillary number (Ca).
  • Utilizing a precisely defined dynamic contact angle to link macroscopic observations to microscopic phenomena.
  • Examining silicone fluid spreading dynamics.

Related Experiment Videos

Main Results:

  • Microscopic parameters show a detectable dependence on spreading velocity above a critical threshold.
  • This velocity dependence is not scaled by the Capillary number (Ca).
  • The findings suggest the presence of an additional, unscaled time scale in the microscopic model.

Conclusions:

  • Macroscopic dynamic contact angle measurements can provide insights into microscopic wetting physics.
  • Current models may be incomplete due to the absence of a critical time scale influencing dynamic wetting.
  • Further theoretical development is needed to incorporate this time scale for accurate predictions.