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

Newtonian Fluid: Problem Solving01:18

Newtonian Fluid: Problem Solving

416
Newtonian fluids exhibit a constant viscosity, meaning their shear stress and shear strain rate are directly proportional. This property ensures a predictable and stable response to applied forces, maintaining a linear relationship between force and flow. Examples include water, air, and light oils, consistently demonstrating this proportional behavior regardless of external conditions.
A velocity gradient forms within the fluid when a Newtonian fluid is placed between two parallel plates, with...
416
Navier–Stokes Equations01:28

Navier–Stokes Equations

795
For incompressible Newtonian fluids, where density remains constant, stresses show a linear relationship with the deformation rate, defined by normal and shear stresses. Normal stresses depend on the pressure exerted on the fluid and the rate of deformation in specific directions, which determines how fluid flows under varying pressures. Shear stresses, on the other hand, act tangentially across fluid layers. They explain how adjacent fluid layers slide relative to one another, connecting...
795
Laminar and Turbulent Flow01:07

Laminar and Turbulent Flow

9.2K
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...
9.2K
Euler's Equations of Motion01:28

Euler's Equations of Motion

583
In fluid mechanics, shear stresses arise from viscosity, which represents a fluid's internal resistance to deformation. For low-viscosity fluids, like water, these stresses are minimal, simplifying flow analysis by allowing the fluid to be treated as inviscid, or frictionless. In an inviscid fluid, shear stresses are absent, leaving only normal stresses, which act perpendicularly to fluid elements. Notably, pressure — defined as the negative of the normal stress — remains...
583
Viscosity of Fluid01:19

Viscosity of Fluid

749
Viscosity measures the resistance a fluid offers to flow and deformation. It results from internal friction between layers of fluid moving relative to one another. Dynamic viscosity, denoted by the Greek letter mu (μ), quantifies the force needed to move one fluid layer over another. For Newtonian fluids like water and air, the relationship between the shearing stress and the rate of shearing strain is linear, meaning their viscosity remains constant regardless of the applied stress.
749
Viscosity01:17

Viscosity

6.2K
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...
6.2K

You might also read

Related Articles

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

Sort by
Same author

Steady and oscillatory propulsion in reactive swimming droplets.

Soft matter·2026
Same author

The assessment and treatment of kratom dependence: findings from a physician survey in Malaysia.

The American journal of drug and alcohol abuse·2026
Same author

Interfacial Oxygen Migration Underlies Performance Limitations in High-Loading Aluminum-Ion Batteries.

ChemSusChem·2026
Same author

Manipulating Kinetic Competition and Electrocrystallization at Electrochemical Interfaces in Aqueous Zn Batteries.

Journal of the American Chemical Society·2026
Same author

Universal progression of structure and dynamics in colloidal nanocrystal gels during salt-accelerated aging.

Science advances·2026
Same author

Protein-Delivering Polyelectrolyte Complex Hydrogels: Structure, Swelling and Dissolution Characteristics, and Release Behavior.

Biomacromolecules·2026

Related Experiment Video

Updated: Sep 22, 2025

An Analog Macroscopic Technique for Studying Molecular Hydrodynamic Processes in Dense Gases and Liquids
11:03

An Analog Macroscopic Technique for Studying Molecular Hydrodynamic Processes in Dense Gases and Liquids

Published on: December 4, 2017

8.6K

Hyperdiffusive Dynamics in Newtonian Nanoparticle Fluids.

Samanvaya Srivastava1, Praveen Agarwal1, Rahul Mangal1

  • 1School of Chemical and Biomolecular Engineering, Cornell University, Ithaca, New York 14853, United States.

ACS Macro Letters
|May 26, 2022
PubMed
Summary
This summary is machine-generated.

Hyperdiffusive relaxations in soft glassy materials can originate from equilibrium thermal rearrangements, not just out-of-equilibrium states. This finding offers new insights into the physics of soft matter and nanoparticle dynamics.

More Related Videos

Confocal Imaging of Confined Quiescent and Flowing Colloid-polymer Mixtures
10:56

Confocal Imaging of Confined Quiescent and Flowing Colloid-polymer Mixtures

Published on: May 20, 2014

12.3K
Experimental Measurement of Settling Velocity of Spherical Particles in Unconfined and Confined Surfactant-based Shear Thinning Viscoelastic Fluids
10:28

Experimental Measurement of Settling Velocity of Spherical Particles in Unconfined and Confined Surfactant-based Shear Thinning Viscoelastic Fluids

Published on: January 3, 2014

13.8K

Related Experiment Videos

Last Updated: Sep 22, 2025

An Analog Macroscopic Technique for Studying Molecular Hydrodynamic Processes in Dense Gases and Liquids
11:03

An Analog Macroscopic Technique for Studying Molecular Hydrodynamic Processes in Dense Gases and Liquids

Published on: December 4, 2017

8.6K
Confocal Imaging of Confined Quiescent and Flowing Colloid-polymer Mixtures
10:56

Confocal Imaging of Confined Quiescent and Flowing Colloid-polymer Mixtures

Published on: May 20, 2014

12.3K
Experimental Measurement of Settling Velocity of Spherical Particles in Unconfined and Confined Surfactant-based Shear Thinning Viscoelastic Fluids
10:28

Experimental Measurement of Settling Velocity of Spherical Particles in Unconfined and Confined Surfactant-based Shear Thinning Viscoelastic Fluids

Published on: January 3, 2014

13.8K

Area of Science:

  • Soft Matter Physics
  • Materials Science
  • Polymer Science

Background:

  • Hyperdiffusive relaxations in soft glassy materials are often linked to nonequilibrium physics and aging.
  • Understanding the origins of these relaxations is crucial for controlling material properties.

Purpose of the Study:

  • To investigate the origins of hyperdiffusive relaxations in model soft materials.
  • To explore the role of polymer-mediated interactions and thermal rearrangements in nanoparticle dynamics.

Main Methods:

  • Studied model soft materials composed of single-component polymer-tethered nanoparticles.
  • Observed a Newtonian flow regime and analyzed nanoparticle correlations and relaxations.

Main Results:

  • Identified hyperdiffusive relaxations in a system with a Newtonian flow regime.
  • Demonstrated that polymer-mediated interactions cause strong nanoparticle correlations.
  • Observed unusual temperature-dependent variations in material properties.

Conclusions:

  • Hyperdiffusive relaxations can arise from equilibrium thermal rearrangements of particle pair orientations.
  • This mechanism provides a natural explanation for observed phenomena without invoking nonequilibrium states.
  • The findings advance the understanding of soft glassy material dynamics and polymer-nanoparticle interactions.