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

Thermal Stress01:09

Thermal Stress

3.3K
If the temperature of an object is changed while it is prevented from expanding or contracting, the object is subjected to stress. The stress is compressive if the object expands in the absence of constraint and tensile if it contracts. This stress resulting from temperature change is known as thermal stress. It can be quite large and can cause damage. To avoid this stress, engineers may design components so they can expand and contract freely. For instance, on highways, gaps are deliberately...
3.3K
Thermal expansion and Thermal stress: Problem Solving01:27

Thermal expansion and Thermal stress: Problem Solving

2.2K
San Francisco's Golden Gate Bridge is exposed to temperatures ranging from -15 °C to 40 °C. At its coldest, the main span of the bridge is 1275 m long. Assuming that the bridge is made entirely of steel, what is the change in its length between these temperatures?
To solve the problem, first, identify the known and unknown quantities. The initial length (L) of the bridge is 1275 m, the coefficient of linear expansion (α) for steel is 12 x 10-6/°C, and the change in temperature (ΔT) is 55...
2.2K
Binary Fission01:26

Binary Fission

2.9K
Binary fission is the primary mode of asexual reproduction in prokaryotes, such as bacteria. It results in the production of two genetically identical daughter cells. This highly efficient process ensures the rapid propagation of bacterial populations under favorable conditions and involves coordinated cellular and molecular events.DNA Replication and SeparationThe process begins with the replication of the bacterial chromosome. The circular DNA molecule unwinds at a specific origin of...
2.9K
Binary Fission01:20

Binary Fission

63.2K
Fission is the division of a single entity into two or more parts, which regenerate into separate entities that resemble the original. Organisms in the Archaea and Bacteria domains reproduce using binary fission, in which a parent cell splits into two parts that can each grow to the size of the original parent cell. This asexual method of reproduction produces cells that are all genetically identical.
63.2K
Mixtures of Acids03:27

Mixtures of Acids

21.7K
The pH of a solution containing an acid can be determined using its acid dissociation constant and its initial concentration. If a solution contains two different acids, then its pH can be determined using one of several methods depending upon the relative strength of the acids and their dissociation constants.
A Mixture of a Strong Acid and a Weak Acid
In a mixture of a strong acid and a weak acid, the strong acid dissociates completely and becomes a source of almost all the hydronium ions...
21.7K
Mixtures of Acids01:19

Mixtures of Acids

1.1K
The pH of a solution containing an acid can be determined using its acid dissociation constant and initial concentration. If a solution contains two different acids, then its pH can be determined using one of several methods depending on the relative strength of the acids and their dissociation constants.
In a strong and weak acid mixture, the strong acid dissociates completely and becomes a source of almost all the hydronium ions present in the solution. In contrast, the weak acid shows...
1.1K

You might also read

Related Articles

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

Sort by
Same author

Non-equilibrium stratification in supercritical CO<sub>2</sub>.

Nature communications·2026
Same author

Free-interface convective mixing in porous media: 2D and 3D numerical simulations.

The European physical journal. E, Soft matter·2026
Same author

Quenching of long-wavelength non-equilibrium temperature fluctuations in a thermophilic colloidal suspension heated from below.

The Journal of chemical physics·2025
Same author

Taming the diffusiophoretic convective instability in colloidal suspensions.

Soft matter·2025
Same author

Convective Instability Driven by Diffusiophoresis of Colloids in Binary Liquid Mixtures.

The journal of physical chemistry letters·2024
Same author

Modeling and correction of image drift in dynamic shadowgraphy experiments.

The European physical journal. E, Soft matter·2024
Same journal

Erratum: Low-dimensional model for adaptive networks of spiking neurons [Phys. Rev. E 111, 014422 (2025)].

Physical review. E·2026
Same journal

Disentangling the effects of many-body forces on depletion interactions.

Physical review. E·2026
Same journal

Charge transport and mode transition in dual-energy electron beam diodes.

Physical review. E·2026
Same journal

Optimization of multisite reactions in complex compartmentalized media.

Physical review. E·2026
Same journal

Origin of geometric cohesion in nonconvex granular materials: Interplay between interdigitation and rotational constraints enhancing frictional stability.

Physical review. E·2026
Same journal

Interaction of walkers with a standing Faraday wave.

Physical review. E·2026
See all related articles

Related Experiment Video

Updated: Jan 29, 2026

Thermal Imaging to Study Stress Non-invasively in Unrestrained Birds
10:07

Thermal Imaging to Study Stress Non-invasively in Unrestrained Birds

Published on: November 6, 2015

14.0K

Propagating modes in a binary liquid mixture under thermal stress.

Fabrizio Croccolo1, Loreto García-Fernández1, Henri Bataller1

  • 1Laboratoire des Fluides Complexes et leurs Réservoirs, IPRA, UMR5150, E2S-Univ Pau & Pays Adour/CNRS/Total, 64600 Anglet, France.

Physical Review. E
|February 21, 2019
PubMed
Summary
This summary is machine-generated.

Nonequilibrium fluctuations in binary liquid mixtures relax via conduction or gravity. In a heated mixture, gravity-induced buoyancy creates propagating modes of temperature and velocity fluctuations.

More Related Videos

Preparation of Monodomain Liquid Crystal Elastomers and Liquid Crystal Elastomer Nanocomposites
12:21

Preparation of Monodomain Liquid Crystal Elastomers and Liquid Crystal Elastomer Nanocomposites

Published on: February 6, 2016

13.5K
Fabrication of Zero Mode Waveguides for High Concentration Single Molecule Microscopy
08:01

Fabrication of Zero Mode Waveguides for High Concentration Single Molecule Microscopy

Published on: May 12, 2020

8.7K

Related Experiment Videos

Last Updated: Jan 29, 2026

Thermal Imaging to Study Stress Non-invasively in Unrestrained Birds
10:07

Thermal Imaging to Study Stress Non-invasively in Unrestrained Birds

Published on: November 6, 2015

14.0K
Preparation of Monodomain Liquid Crystal Elastomers and Liquid Crystal Elastomer Nanocomposites
12:21

Preparation of Monodomain Liquid Crystal Elastomers and Liquid Crystal Elastomer Nanocomposites

Published on: February 6, 2016

13.5K
Fabrication of Zero Mode Waveguides for High Concentration Single Molecule Microscopy
08:01

Fabrication of Zero Mode Waveguides for High Concentration Single Molecule Microscopy

Published on: May 12, 2020

8.7K

Area of Science:

  • Thermodynamics
  • Fluid Dynamics
  • Soft Matter Physics

Background:

  • Binary liquid mixtures exhibit complex dynamics under temperature gradients.
  • Nonequilibrium fluctuations are crucial for understanding system relaxation pathways.

Purpose of the Study:

  • Investigate the dynamics of nonequilibrium fluctuations in a binary liquid mixture (polystyrene and toluene).
  • Analyze the influence of gravitational stabilization on fluctuation relaxation.
  • Identify the nature of propagating modes observed in thermodiffusion experiments.

Main Methods:

  • Performed a thermodiffusion experiment on a polystyrene-toluene mixture heated from above.
  • Utilized shadowgraph imaging to detect and analyze the structure function of fluctuations.
  • Employed a fluctuating hydrodynamics theoretical model incorporating coupled velocity, temperature, and concentration fluctuations.

Main Results:

  • Observed that gravitational stabilization at small wave numbers significantly influences fluctuation dynamics.
  • Detected the emergence of propagating modes of nonequilibrium fluctuations.
  • Attributed these modes to the combined effects of temperature and velocity fluctuations driven by buoyancy.
  • Experimental results align well with the theoretical model.

Conclusions:

  • Gravity plays a dominant role in quenching fluctuations at small wave numbers in heated binary liquid mixtures.
  • Propagating modes are a key feature of nonequilibrium dynamics in this system.
  • The developed fluctuating hydrodynamics model accurately describes the observed phenomena.