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

Interface and contact line motion in a two phase fluid under shear flow

Chen1, Jasnow, Vinals

  • 1Department of Physics and Astronomy, University of Pittsburgh, Pittsburgh, Pennsylvania 15260, USA.

Physical Review Letters
|September 6, 2000
PubMed
Summary

Steady shear flow in two-phase fluids causes interfacial slip due to order parameter relaxation. This phenomenon is characterized by a specific length scale and depends on fluid layer width and capillary number.

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

Conformation of Fibronectin Fibrils Varies: Discrete Globular Domains of Type III Repeats Detected.

Microscopy and microanalysis : the official journal of Microscopy Society of America, Microbeam Analysis Society, Microscopical Society of Canada·1999
Same author

A Structural Equation Model of the Effects of Negative Affectivity, Leader-Member Exchange, and Perceived Job Mobility on In-role and Extra-role Performance: A Chinese Case.

Organizational behavior and human decision processes·1999
Same author

Preparation of Palladium Ultrafine Particles in Reverse Micelles.

Journal of colloid and interface science·1999
Same author

New taxoids from the seeds of taxus chinensis

Journal of natural products·1999
Same author

Self-assembly of ordered microporous materials from rod-coil block copolymers

Science (New York, N.Y.)·1999
Same author

Conformational Structure of Triblock Copolymers by FT-Raman and FTIR Spectroscopy.

Journal of colloid and interface science·1999

Area of Science:

  • Fluid dynamics
  • Soft matter physics
  • Interfacial phenomena

Background:

  • Understanding two-phase fluid behavior under shear is crucial for various applications.
  • Interfacial slip and its underlying mechanisms remain an active area of research.

Purpose of the Study:

  • To investigate the steady-state interfacial configuration of two-phase fluids subjected to steady shear.
  • To analyze the role of dissipative relaxation of the order parameter in generating interfacial slip.

Main Methods:

  • Employing a coarse-grained description to model the fluid system.
  • Analyzing the characteristic length scale of order parameter relaxation: l(0) = sqrt[xiD/V0].
  • Deriving scaling laws for the steady-state interfacial configuration.

Related Experiment Videos

Main Results:

  • Dissipative relaxation of the order parameter induces interfacial slip at the contact line, irrespective of no-slip velocity conditions.
  • The relaxation process is confined to a characteristic length scale, l(0).
  • The steady-state configuration scales with the ratio l(0)/L (fluid layer width) for passive interfaces and includes the capillary number for active interfaces.

Conclusions:

  • Interfacial slip in sheared two-phase fluids is a direct consequence of order parameter dynamics.
  • The identified scaling laws provide a framework for predicting interfacial behavior across different system parameters.
  • This study offers insights into the fundamental physics governing complex fluid interfaces.