Jove
Visualize
Contact Us
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

Related Experiment Videos

Simulation of Coating Layer Evolution and Drop Formation on Horizontal Cylinders

Weidner1, Schwartz, Eres

  • 1Department of Mechanical Engineering, University of Delaware, Newark, Delaware, 19716

Journal of Colloid and Interface Science
|March 1, 1997
PubMed
Summary

Liquid film flow on cylinders transitions from uniform coating to distinct drops. Gravity-driven drainage initially suppresses disturbances, allowing wave development and drop formation, influenced by cylinder radius.

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

Boracic Acid in the Treatment of Leucorrhœa.

Buffalo medical and surgical journal·2023
Same author

In reply.

Deutsches Arzteblatt international·2013
Same author

Lupus erythematosus.

Archives of pediatrics·2010
Same author

Tyrosine Phosphorylation of Moesin in Arachidonic Acid-Stimulated Human Platelets.

Journal of thrombosis and thrombolysis·2001
Same author

Interobserver Reproducibility and Biological Variability of the Surgicutt II Bleeding Time.

Journal of thrombosis and thrombolysis·2001
Same author

Current management of perforated peptic ulcer.

Current surgery·2000

Area of Science:

  • Fluid dynamics
  • Surface phenomena
  • Nonlinear dynamics

Background:

  • Understanding thin liquid film behavior is crucial in various industrial applications.
  • The transition from a continuous film to discrete droplets presents complex physical phenomena.
  • Previous studies have explored droplet formation but lack detailed analysis across varying cylinder geometries.

Purpose of the Study:

  • To derive and numerically solve the lubrication equations for thin liquid film flow on a horizontal cylinder.
  • To investigate the transition dynamics from a uniform film to discrete drops.
  • To analyze the influence of cylinder radius on drop evolution and equilibrium configurations.

Main Methods:

  • Derivation of the lubrication form of governing equations for thin film flow.

Related Experiment Videos

  • Numerical discretization and solution using an alternating-direction implicit algorithm.
  • Simulation of liquid film evolution for a range of cylinder radii.

    • Main Results:

    • A universal transition pathway from uniform coating to distinct drops observed across various cylinder radii.
    • Gravity-driven drainage initially inhibits axial disturbances, followed by longitudinal wave development.
    • Formation of primary and satellite drops through linear and nonlinear wave growth regimes.
    • Equilibrium state reached when surface tension balances gravitational forces, with drop localization dependent on cylinder radius.

    Conclusions:

    • The study elucidates the fundamental physics governing thin liquid film breakup on cylinders.
    • Cylinder radius significantly impacts the final drop configuration, from localized patterns to circumferential wrapping.
    • Integral measures like total energy and viscous dissipation provide insights into the distinct growth phases of the film evolution.