Jove
Visualize
Contact Us

Related Concept Videos

Boundary Layer Characteristics01:18

Boundary Layer Characteristics

When a fluid encounters a solid surface, a boundary layer forms due to the interaction between the fluid's motion and the stationary surface. This phenomenon is characterized by a thin region adjacent to the surface where viscous forces dominate, influencing the fluid's velocity profile. The development of the boundary layer begins at the leading edge of the surface and evolves as the fluid moves downstream.As the fluid flows over the surface, friction between the fluid and the wall slows down...
Viscosity01:17

Viscosity

When water is poured into a glass, it falls freely and quickly, whereas if honey or maple syrup is poured over a pancake, it flows slowly and sticks to the surface of the container. This difference in the flow of different kinds of liquids arises due to the fluid friction between the liquid layers and the liquid and the surrounding material. This property of fluids is called fluid viscosity. In this example, water has a lower viscosity than honey and maple syrup.
The SI unit of viscosity is...
Laminar and Turbulent Flow01:07

Laminar and Turbulent Flow

Fluid dynamics is the study of fluids in motion. Velocity vectors are often used to illustrate fluid motion in applications like meteorology. For example, wind—the fluid motion of air in the atmosphere—can be represented by vectors indicating the speed and direction of the wind at any given point on a map. Another method for representing fluid motion is a streamline. A streamline represents the path of a small volume of fluid as it flows. When the flow pattern changes with time, the streamlines...
Steady, Laminar Flow Between Parallel Plates01:17

Steady, Laminar Flow Between Parallel Plates

Understanding steady, laminar flow between parallel plates is essential for analyzing and designing flow in narrow rectangular channels, commonly found in various water conveyance and drainage systems. The Navier-Stokes equations govern fluid motion and are generally challenging to solve due to their nonlinearity. However, simplifications are possible in certain cases, like the steady laminar flow between parallel plates. For this scenario, we assume steady, incompressible, laminar flow.
Surface Tension of Fluid01:22

Surface Tension of Fluid

Surface tension is a fundamental property of fluids, occurring at the boundary between a liquid and a gas or between two immiscible liquids. This phenomenon arises from the cohesive forces between molecules at the fluid's surface, creating an effect similar to a stretched elastic membrane. Inside each fluid, molecules are equally attracted in all directions by neighboring molecules, but surface molecules experience a net inward force, resulting in surface tension.
Surface tension varies with...
Rise of Liquid in a Capillary Tube01:18

Rise of Liquid in a Capillary Tube

When very thin cylindrical tubes, called capillaries, are dipped in a liquid, the liquid rises or falls in the tube compared to the surrounding liquid. This phenomenon is called capillary action. Capillary action occurs due to the combination of two opposing forces: the cohesive forces of the liquid, which cause it to stick to itself and form a rounded shape, and the adhesive forces between the liquid and the walls of the container, which cause the liquid to be attracted to the container walls.

You might also read

Related Articles

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

Sort by
Same author

Dynamic and Equilibrium Contribution of Nematic Order in Wetting and Contact Angles.

The journal of physical chemistry. B·2023
Same author

Dynamic contact angles in oil-aqueous polymer solutions.

Physical chemistry chemical physics : PCCP·2017
Same author

Stability of two-dimensional growth of a packed body of proteins on a solid surface.

Langmuir : the ACS journal of surfaces and colloids·2011
Same author

Inhomogeneity of adsorbed proteins on a solid surface.

Colloids and surfaces. B, Biointerfaces·2009
Same author

The influence of adaptogens on ultraweak biophoton emission: a pilot-experiment.

Phytotherapy research : PTR·2009
Same author

Jejunal amoebiasis with perforation and spread to mesenteric lymph node.

Journal of clinical pathology·2008
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 Video

Updated: Jun 3, 2026

Film Control to Study Contributions of Waves to Droplet Impact Dynamics on Thin Flowing Liquid Films
07:08

Film Control to Study Contributions of Waves to Droplet Impact Dynamics on Thin Flowing Liquid Films

Published on: August 18, 2018

Labyrinthine instability in thin liquid films.

P Neogi1

  • 1Chemical and Biological Engineering, Missouri University of Science and Technology, Rolla, MO 65409-1230, USA. neogi@mst.edu

Journal of Physics. Condensed Matter : an Institute of Physics Journal
|March 10, 2011
PubMed
Summary

Thin liquid films break down into wavy patterns when reaching a critical thickness. This study models wavy instability using magnetic film methods, finding satisfactory agreement with experimental liquid crystal data.

More Related Videos

Visually Based Characterization of the Incipient Particle Motion in Regular Substrates: From Laminar to Turbulent Conditions
11:51

Visually Based Characterization of the Incipient Particle Motion in Regular Substrates: From Laminar to Turbulent Conditions

Published on: February 22, 2018

Magnetically Induced Rotating Rayleigh-Taylor Instability
06:42

Magnetically Induced Rotating Rayleigh-Taylor Instability

Published on: March 3, 2017

Related Experiment Videos

Last Updated: Jun 3, 2026

Film Control to Study Contributions of Waves to Droplet Impact Dynamics on Thin Flowing Liquid Films
07:08

Film Control to Study Contributions of Waves to Droplet Impact Dynamics on Thin Flowing Liquid Films

Published on: August 18, 2018

Visually Based Characterization of the Incipient Particle Motion in Regular Substrates: From Laminar to Turbulent Conditions
11:51

Visually Based Characterization of the Incipient Particle Motion in Regular Substrates: From Laminar to Turbulent Conditions

Published on: February 22, 2018

Magnetically Induced Rotating Rayleigh-Taylor Instability
06:42

Magnetically Induced Rotating Rayleigh-Taylor Instability

Published on: March 3, 2017

Area of Science:

  • Physics
  • Materials Science
  • Physical Chemistry

Background:

  • Thin liquid films on solid surfaces can exhibit complex breakdown patterns.
  • Wavy instability is a phenomenon observed during the breakdown of such films.
  • This instability shares similarities with labyrinthine instability in magnetic films.

Purpose of the Study:

  • To model and understand the wavy instability in thin liquid films.
  • To compare the wavy instability in liquid films with labyrinthine instability in magnetic films.
  • To derive characteristic length scales and validate with experimental data.

Main Methods:

  • Modeling the system using procedures adapted from magnetic film studies.
  • Decomposing the wavy instability pattern into equilibrium thick-thin and thin-thin film configurations.
  • Minimizing free energy to derive expressions for system length scales.
  • Performing stability analysis.

Main Results:

  • The wavy instability pattern was successfully modeled as a coexistence of thick-thin and thin-thin films.
  • Expressions for characteristic length scales of the system were derived.
  • Model predictions showed satisfactory agreement with experimental results for nematic liquid crystals.
  • Equilibrium film thicknesses, including those with non-zero capillary pressure, were accurately predicted.

Conclusions:

  • The free energy minimization approach provides a robust framework for understanding thin film breakdown.
  • The proposed tiled structure model effectively explains the labyrinthine form of wavy instability.
  • The study validates the applicability of magnetic system modeling techniques to liquid film instabilities.