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 Concept Videos

Steady Flow of a Fluid Stream01:27

Steady Flow of a Fluid Stream

692
Consider a control volume, such as a pipe with solid boundaries, through which fluid flows and changes direction due to the impulse exerted by the resulting force from the pipe walls. In steady flow, the mass of fluid entering the control volume at a given time, t, with velocity v1, is equal to the mass leaving after infinitesimal time dt, with velocity v2.
During this process, the momentum of the fluid within the control volume remains constant over the time interval dt. By applying the...
692
The Fluid Mosaic Model01:34

The Fluid Mosaic Model

177.6K
The fluid mosaic model was first proposed as a visual representation of research observations. The model comprises the composition and dynamics of membranes and serves as a foundation for future membrane-related studies. The model depicts the structure of the plasma membrane with a variety of components, which include phospholipids, proteins, and carbohydrates. These integral molecules are loosely bound, defining the cell’s border and providing fluidity for optimal function.
177.6K
Accelerating Fluids01:17

Accelerating Fluids

2.3K
When a fluid is in constant acceleration, the pressure and buoyant force equations are modified. Suppose a beaker is placed in an elevator accelerating upward with a constant acceleration, a. In the beaker, assume there is a thin cylinder of height h with an infinitesimal cross-sectional area, ΔS.
The motion of the liquid within this infinitesimal cylinder is considered to obtain the pressure difference. Three vertical forces act on this liquid:
2.3K
Cerebrospinal Fluid01:21

Cerebrospinal Fluid

5.6K
Cerebrospinal fluid (CSF) is a colorless liquid that flows around the brain and the spinal cord, playing a vital role in the protection, support, and overall function of the central nervous system (CNS). CSF production, circulation, and absorption are tightly regulated processes essential for the brain and spinal cord to function properly.
CSF Production
CSF is produced mainly in the choroid plexus, a network of capillaries and ependymal cells located within the ventricular system of the brain....
5.6K
Fluid Pressure01:14

Fluid Pressure

1.2K
In mechanical engineering, fluid pressure plays a critical role in designing systems that utilize liquid flow, such as hydraulic systems, pumps, and valves. When designing these systems, engineers must ensure they can withstand the forces created by fluid pressure to avoid damage or failure.
According to Pascal's law, a fluid at rest will generate equal pressure in all directions. This pressure is measured as a force per unit area, and its magnitude depends on the fluid's specific...
1.2K
Characteristics of Fluids01:31

Characteristics of Fluids

995
Fluids differ from solids primarily in their molecular structure and stress response. Solids have tightly packed molecules with strong intermolecular forces, maintaining their shape and resisting deformation. In contrast, fluids have molecules spaced farther apart with weaker forces, allowing them to flow and deform easily.
Fluids, which include both liquids and gases, are substances that deform continuously under shearing stress. For example, water and oil are liquids with molecules that can...
995

You might also read

Related Articles

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

Sort by
Same author

Derivation and external validation of a deep learning model to predict changes in coronary plaque burden.

EuroIntervention : journal of EuroPCR in collaboration with the Working Group on Interventional Cardiology of the European Society of Cardiology·2026
Same author

The role of the complement system in Shiga toxin-associated hemolytic uremic syndrome.

Pediatric nephrology (Berlin, Germany)·2025
Same author

Bayesian inference of spectrometric data and validation with numerical simulations of plasma sheath diagnostics of a plasma focus discharge.

Scientific reports·2022
Same author

A low-cost portable simulator of a domestic cat larynx for teaching endotracheal intubation.

Veterinary anaesthesia and analgesia·2020
Same author

Proliferative diabetic retinopathy characterization based on fractal features: Evaluation on a publicly available dataset.

Medical physics·2017
Same author

Are continuum predictions of clustering chaotic?

Chaos (Woodbury, N.Y.)·2017

Related Experiment Video

Updated: Jan 27, 2026

Controlling Flow Speeds of Microtubule-Based 3D Active Fluids Using Temperature
08:04

Controlling Flow Speeds of Microtubule-Based 3D Active Fluids Using Temperature

Published on: November 26, 2019

7.6K

Chaos in wavy-stratified fluid-fluid flow.

Avinash Vaidheeswaran1, Alejandro Clausse2, William D Fullmer1

  • 1National Energy Technology Laboratory, Morgantown, West Virginia 26507, USA.

Chaos (Woodbury, N.Y.)
|April 1, 2019
PubMed
Summary

This study analyzes fluid-fluid wavy stratified flow using a simplified two-fluid model (FFM). The research confirms the model captures chaotic interface dynamics beyond Kelvin-Helmholtz instability, crucial for understanding wave evolution.

More Related Videos

Analysis of Gene Function and Visualization of Cilia-Generated Fluid Flow in Kupffer's Vesicle
08:11

Analysis of Gene Function and Visualization of Cilia-Generated Fluid Flow in Kupffer's Vesicle

Published on: March 31, 2013

15.2K
The Assembly and Application of 'Shear Rings': A Novel Endothelial Model for Orbital, Unidirectional and Periodic Fluid Flow and Shear Stress
09:20

The Assembly and Application of 'Shear Rings': A Novel Endothelial Model for Orbital, Unidirectional and Periodic Fluid Flow and Shear Stress

Published on: October 31, 2016

8.5K

Related Experiment Videos

Last Updated: Jan 27, 2026

Controlling Flow Speeds of Microtubule-Based 3D Active Fluids Using Temperature
08:04

Controlling Flow Speeds of Microtubule-Based 3D Active Fluids Using Temperature

Published on: November 26, 2019

7.6K
Analysis of Gene Function and Visualization of Cilia-Generated Fluid Flow in Kupffer's Vesicle
08:11

Analysis of Gene Function and Visualization of Cilia-Generated Fluid Flow in Kupffer's Vesicle

Published on: March 31, 2013

15.2K
The Assembly and Application of 'Shear Rings': A Novel Endothelial Model for Orbital, Unidirectional and Periodic Fluid Flow and Shear Stress
09:20

The Assembly and Application of 'Shear Rings': A Novel Endothelial Model for Orbital, Unidirectional and Periodic Fluid Flow and Shear Stress

Published on: October 31, 2016

8.5K

Area of Science:

  • Fluid Dynamics
  • Nonlinear Dynamics
  • Computational Physics

Background:

  • Kelvin-Helmholtz instability (KHI) drives chaotic dynamics in fluid interfaces.
  • Understanding nonlinear wave evolution beyond KHI requires advanced analysis.
  • Simplified two-fluid models (TFM) offer computational advantages for complex fluid flows.

Purpose of the Study:

  • To perform a nonlinear analysis of fluid-fluid wavy stratified flow.
  • To investigate the capabilities of the fixed-flux model (FFM) in capturing chaotic interface dynamics.
  • To compare simulation results with experimental data and analyze key parameters.

Main Methods:

  • Utilized a simplified two-fluid model (FFM), an adaptation of shallow water theory.
  • Employed a higher-order spatiotemporal finite difference scheme for simulations.
  • Applied linear analysis via perturbation methods and calculated finite-time Lyapunov exponents (FTLE).

Main Results:

  • The FFM successfully captures essential chaotic features of interface dynamics beyond KHI.
  • FTLE values from simulations correlate well with experimental autocorrelation decay rates.
  • FTLE is sensitive to the angle of inclination, while interface height shows a square-root dependence.

Conclusions:

  • The 1-D FFM is a viable tool for studying chaotic fluid dynamics.
  • The study validates the FFM's ability to model complex interfacial phenomena.
  • Appropriate short-wavelength physics in TFMs leads to well-behaved, chaotic dynamics post-instability.