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, Laminar Flow Between Parallel Plates01:17

Steady, Laminar Flow Between Parallel Plates

638
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.
638
Couette Flow01:22

Couette Flow

709
Couette flow represents the flow of fluid between two parallel plates, with one plate fixed and the other moving with a constant velocity. This configuration allows for a simplified analysis using the Navier-Stokes equations, which govern fluid motion under conditions of viscosity and incompressibility. For Couette flow, the assumptions include a steady, laminar, incompressible flow with a zero-pressure gradient in the flow direction. This flow type is beneficial for understanding shear-driven...
709
Shear Diagram01:27

Shear Diagram

1.4K
In the study of beam mechanics, shear diagrams play a crucial role in understanding the distribution of shear forces along the length of a beam. Consider a beam AB that is supported at both ends and subjected to perpendicular loads.
First, a free-body diagram of the beam is drawn, representing all the external forces and internal reactions acting on the beam. One can calculate the reaction forces at each support by employing the equilibrium equations of force and moment. The vertical component...
1.4K
Shearing Stress01:19

Shearing Stress

1.4K
Shearing stress, denoted by the Greek letter tau (τ), is stress caused by forces acting transversely on an object. These forces create internal ones within the entity in the plane where the external forces are applied. The resultant of these internal forces is the shear in the section.
The average shearing stress can be calculated by dividing the shear by the area of the cross-section.
1.4K
Shearing Strain01:20

Shearing Strain

982
The shearing strain represents a cubic element's angular change when subjected to shearing stress. This type of stress can transform a cube into an oblique parallelepiped without influencing normal strains. The cubic element experiences a significant transformation when exposed solely to shearing stress. Its shape alters from a perfect cube into a rhomboid, clearly demonstrating the effect of shearing strain. The degree of this strain is considered positive if it reduces the angle between the...
982
Steady, Laminar Flow in Circular Tubes01:23

Steady, Laminar Flow in Circular Tubes

754
Hagen-Poiseuille flow describes a viscous fluid's steady, incompressible flow through a cylindrical tube with a constant radius R. This flow profile is often applied to understand fluid transport in narrow channels, such as capillaries. It serves as a foundational example of laminar flow. In this model, cylindrical coordinates (r,θ,z) are used to describe the radial (r), angular (θ), and axial (z) dimensions within the tube. For Hagen-Poiseuille flow, the velocity profile is purely axial,...
754

You might also read

Related Articles

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

Sort by
Same author

Dynamics of coalescence in hyperquenched glassy water probed by x-rays.

The Journal of chemical physics·2026
Same author

A pipeline for megahertz X-ray photon correlation spectroscopy on soft matter samples at the MID instrument of European XFEL.

Journal of synchrotron radiation·2026
Same author

Acid-induced acceleration of kinetics and dynamics during thermal gelation of egg yolk.

The Journal of chemical physics·2026
Same author

Entropic and Enthalpic Control of Interfacial Nanoparticle Jamming in Immiscible Polymers.

ACS macro letters·2026
Same author

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

Science advances·2026
Same author

Dynamic Contact Angles on Moving Fibers Measured by X-ray Holography.

Langmuir : the ACS journal of surfaces and colloids·2026

Related Experiment Video

Updated: Dec 4, 2025

Measuring Material Microstructure Under Flow Using 1-2 Plane Flow-Small Angle Neutron Scattering
09:08

Measuring Material Microstructure Under Flow Using 1-2 Plane Flow-Small Angle Neutron Scattering

Published on: February 6, 2014

14.6K

Shear-induced ordering in liquid microjets seen by x-ray cross correlation analysis.

V Markmann1, M Dartsch, J Valerio

  • 1Deutsches Elektronen-Synchrotron DESY, Notkestraße 85, 22607 Hamburg, Germany.

Structural Dynamics (Melville, N.Y.)
|October 23, 2020
PubMed
Summary

Shear flow in microfluidic jets induces direction-dependent silica nanoparticle structures. X-ray analysis revealed how ordering decays after shear stops, varying with nozzle size and shear rate.

More Related Videos

Visualization of High Speed Liquid Jet Impaction on a Moving Surface
08:34

Visualization of High Speed Liquid Jet Impaction on a Moving Surface

Published on: April 17, 2015

11.8K
Cryogenic Liquid Jets for High Repetition Rate Discovery Science
08:34

Cryogenic Liquid Jets for High Repetition Rate Discovery Science

Published on: May 9, 2020

3.3K

Related Experiment Videos

Last Updated: Dec 4, 2025

Measuring Material Microstructure Under Flow Using 1-2 Plane Flow-Small Angle Neutron Scattering
09:08

Measuring Material Microstructure Under Flow Using 1-2 Plane Flow-Small Angle Neutron Scattering

Published on: February 6, 2014

14.6K
Visualization of High Speed Liquid Jet Impaction on a Moving Surface
08:34

Visualization of High Speed Liquid Jet Impaction on a Moving Surface

Published on: April 17, 2015

11.8K
Cryogenic Liquid Jets for High Repetition Rate Discovery Science
08:34

Cryogenic Liquid Jets for High Repetition Rate Discovery Science

Published on: May 9, 2020

3.3K

Area of Science:

  • Materials Science
  • Fluid Dynamics
  • Nanotechnology

Background:

  • Understanding nanoparticle behavior under flow is crucial for applications like drug delivery and materials manufacturing.
  • Microfluidic devices offer precise control over fluid environments for studying particle dynamics.
  • Shear forces can induce complex self-assembly and ordering in colloidal dispersions.

Purpose of the Study:

  • To investigate the shear-induced structural ordering of silica nanoparticles in a microfluidic jet.
  • To analyze the direction-dependent nature of this ordering along and across the flow.
  • To determine the decay dynamics of shear-induced order after flow cessation.

Main Methods:

  • Utilizing a microfluidic jet device to apply controlled shear to silica nanoparticle dispersions.
  • Employing X-ray cross-correlation analysis to quantify diffraction pattern asymmetries.
  • Measuring the decay of shear-induced ordering for varying Rayleigh nozzle sizes and shear rates.
  • Modeling particle distributions and comparing diffraction patterns with simulations.

Main Results:

  • Observed direction-dependent nanoparticle structure formation along and across the flow.
  • Quantified the decay of shear-induced ordering, finding longer characteristic times at larger tube sizes and lower shear rates.
  • Péclet-weighted times did not exhibit linear scaling with Péclet numbers.
  • Determined the azimuthal variation of volume fraction in the maximum ordered state via simulations.

Conclusions:

  • Shear flow in microfluidic jets leads to anisotropic structuring of silica nanoparticles.
  • The dynamics of order decay are complex and depend on flow geometry and shear conditions.
  • The study provides insights into nanoparticle self-assembly under controlled flow, aiding in the design of advanced materials.