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

Dynamics of Rear Stagnant Cap Formation at Low Reynolds Numbers.

E. K. Zholkovskij1, V. I. Koval'chuk, S. S. Dukhin

  • 1Institute of Bio-Colloid Chemistry of the National Academy of Sciences of Ukraine, 42 Vernadsky Avenue, Kiev, 252680, Ukraine

Journal of Colloid and Interface Science
|June 13, 2001
PubMed
Summary
This summary is machine-generated.

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

Identification of molecular markers associated with leptine in reciprocal backcross families of diploid potato.

TAG. Theoretical and applied genetics. Theoretische und angewandte Genetik·2003
Same author

Microflotation Suppression and Enhancement Caused by Particle/Bubble Electrostatic Interaction.

Journal of colloid and interface science·2001
Same author

The Elasticity of Adsorption Layers of Reorientable Surfactants.

Journal of colloid and interface science·2001
See all related articles

The study models gas bubble rising in surfactant solutions using the rear stagnant cap model. Bubble velocity changes over time due to surface film formation, offering insights into adsorption characteristics.

Area of Science:

  • Fluid Dynamics
  • Surface Chemistry

Background:

  • Gas bubble dynamics in surfactant solutions are crucial in various industrial processes.
  • The rear stagnant cap (r.s.c.) model is employed to analyze bubble behavior.
  • Adsorption kinetics are often a rate-limiting step in such systems.

Purpose of the Study:

  • To investigate the time-dependent velocity of rising gas bubbles in surfactant solutions.
  • To analyze bubble behavior using the rear stagnant cap (r.s.c.) model.
  • To determine how adsorption characteristics influence bubble dynamics.

Main Methods:

  • Theoretical analysis based on the rear stagnant cap (r.s.c.) model.
  • Consideration of low Reynolds number flow conditions.
  • Modeling adsorption as the slowest process.

Related Experiment Videos

Main Results:

  • Bubble velocity is predicted to be time-dependent due to non-stationary surface stagnant zone formation.
  • The study discusses various types of bubble behavior.
  • A method is presented to extract adsorption characteristics from bubble velocity data.

Conclusions:

  • The time evolution of bubble velocity provides valuable information about adsorption processes.
  • The rear stagnant cap (r.s.c.) model effectively describes bubble dynamics influenced by adsorption.
  • Understanding these dynamics is key for controlling gas-liquid interfaces.