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

Control Volume and System Representations01:16

Control Volume and System Representations

Two key frameworks are employed to analyze mass, energy, and momentum transfer: the control volume approach and the system approach. These frameworks offer different perspectives, depending on whether the focus is on a specific region in space (control volume approach) or a defined mass of fluid (system approach).
The control volume approach considers a stationary region in space through which fluid flows. This region is bounded by a control surface.  For instance, in the case of water flowing...
Transition State Theory01:25

Transition State Theory

Transition-state theory, also known as activated-complex theory, provides a molecular-level explanation of reaction rates in both gas-phase and solution-phase reactions. It extends earlier kinetic models by considering the formation of a short-lived, high-energy configuration during a reaction.The progress of a chemical reaction can be represented using a reaction profile, which plots potential energy against the reaction coordinate. As two reactant molecules approach one another, their...
Reynolds Transport Theorem01:24

Reynolds Transport Theorem

The Reynolds transport theorem provides a framework to relate the time rate of change of an extensive property within a system to that in a control volume, which is crucial for analyzing fluid dynamics. Extensive properties, such as mass, velocity, acceleration, temperature, and momentum, can be expressed in terms of the mass of a fluid portion. These properties are called extensive because they depend on the system's size, while intensive properties are their corresponding values per unit mass.
Conservation of Mass in Finite Cotrol Volume01:16

Conservation of Mass in Finite Cotrol Volume

The principle of conservation of mass is a fundamental law in fluid mechanics and is applied using the continuity equation. We apply the concept to a finite control volume to derive the continuity equation.
A system is defined as a collection of unchanging contents, and the conservation of mass states that a system's mass is constant.
System, Surroundings, and State01:24

System, Surroundings, and State

Thermodynamics studies the relationship between heat, work, temperature, and energy. A key concept in this field is a "system," the macroscopic part of the universe under observation. Systems can interact with their surroundings, leading to three types: open, closed, and isolated systems.Open systems permit the exchange of both matter and energy with their surroundings, like a boiling pot of water.In contrast, closed systems only allow the transfer of energy, restricting the movement of matter...
Temperature Dependence on Reaction Rate02:55

Temperature Dependence on Reaction Rate

The Collision Theory
Atoms, molecules, or ions must collide before they can react with each other. Atoms must be close together to form chemical bonds. This premise is the basis for a theory that explains many observations regarding chemical kinetics, including factors affecting reaction rates.
The collision theory is based on the postulates that (i) the reaction rate is proportional to the rate of reactant collisions, (ii) the reacting species collide in an orientation allowing contact between...

You might also read

Related Articles

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

Sort by
Same author

On the importance of numerical integration details for homogeneous flow simulation.

The Journal of chemical physics·2026
Same author

Interphase diffusion in two-phase fluids: local dynamics and finite-size effects.

Journal of colloid and interface science·2025
Same author

Self-Assembled Ion Transport Channels in Block Copolymer Electrolytes for Dendrite-Free All-Solid-State Sodium Batteries.

Journal of the American Chemical Society·2025
Same author

Iron Bisphosphonate Metal-Organic Framework Nanoparticles as an Magnetic Resonance Imaging Probe for Spatial Detection of <i>Helicobacter pylori</i>.

ACS nano·2025
Same author

Conductivity and Diffusivity of Ions in Aqueous MgCl<sub>2</sub> from Equilibrium and Nonequilibrium Simulations.

Journal of chemical theory and computation·2025
Same author

Local Temperature Measurement in Molecular Dynamics Simulations with Rigid Constraints.

Journal of chemical theory and computation·2024
Same journal

A data-driven modeling study on the accurate identification of Doppler-free saturated absorption spectra in diatomic tellurium (130Te2).

The Journal of chemical physics·2026
Same journal

Anharmonic phonons via quantum thermal bath simulations.

The Journal of chemical physics·2026
Same journal

Quantum simulation of alignment dependent differential cross sections in co-propagating molecular beams at cold collision energies.

The Journal of chemical physics·2026
Same journal

Non-additive ion effects on the coil-globule equilibrium of a generic polymer in aqueous salt solutions.

The Journal of chemical physics·2026
Same journal

Insights into the unexpected small reduction of the temperature of maximum density of water by lithium chloride addition.

The Journal of chemical physics·2026
Same journal

Optical frequency comb double-resonance spectroscopy of the 9030-9175 cm-1 states of ethylene.

The Journal of chemical physics·2026
See all related articles

Related Experiment Video

Updated: May 19, 2026

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

Response theory for confined systems.

Stefano Bernardi1, Sarah J Brookes, Debra J Searles

  • 1Australian Institute for Bioengineering and Nanotechnology, The University of Queensland, QLD 4072, Australia. bernardiste@gmail.com

The Journal of Chemical Physics
|August 28, 2012
PubMed
Summary
This summary is machine-generated.

We adapted the transient time correlation function (TTCF) method to study shear in confined fluids. This approach allows analysis of realistic nanopore systems, linking boundary-generated dissipation to fluid response.

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

The Diffusion of Passive Tracers in Laminar Shear Flow
08:01

The Diffusion of Passive Tracers in Laminar Shear Flow

Published on: May 1, 2018

Related Experiment Videos

Last Updated: May 19, 2026

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

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

The Diffusion of Passive Tracers in Laminar Shear Flow
08:01

The Diffusion of Passive Tracers in Laminar Shear Flow

Published on: May 1, 2018

Area of Science:

  • Fluid dynamics
  • Statistical mechanics
  • Nanoscale science

Background:

  • Transient Time Correlation Function (TTCF) is a powerful method for studying fluid response.
  • Previous TTCF applications were limited to homogeneous fluids under external fields.
  • Confined fluids in nanopores present unique challenges due to boundary effects.

Purpose of the Study:

  • To extend the TTCF method for analyzing shear response in nanopore-confined fluids.
  • To investigate the generation and correlation of dissipation within confined systems.
  • To compare TTCF results for confined fluids with those of homogeneous systems.

Main Methods:

  • Utilizing the transient time correlation function (TTCF) method.
  • Simulating shear in a nanopore induced by moving atomic boundaries.
  • Employing a thermostat on walls to maintain Newtonian fluid dynamics and remove viscous heat.
  • Correlating boundary-generated dissipation with fluid phase variables.

Main Results:

  • Successfully applied TTCF to a realistic confined fluid system.
  • Demonstrated how boundary conditions can generate dissipation for TTCF analysis.
  • Showcased the method's ability to capture shear stress response in nanopores.
  • Provided a comparison between confined and homogeneous fluid responses.

Conclusions:

  • The TTCF method is adaptable to realistic confined systems with boundary-driven shear.
  • This extension enables the study of nanoscale fluid behavior under confinement.
  • The findings bridge nonlinear response theory and practical nanoscale fluid dynamics.