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 Experiment Videos

Velocity difference statistics in turbulence.

Sunghwan Jung1, Harry L Swinney

  • 1Center for Nonlinear Dynamics and Department of Physics, The University of Texas at Austin, Austin, Texas 78712, USA. sunnyjsh@chaos.utexas.edu

Physical Review. E, Statistical, Nonlinear, and Soft Matter Physics
|October 4, 2005
PubMed
Summary
This summary is machine-generated.

Related Concept Videos

You might also read

Related Articles

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

Sort by
Same author

Pectin removal in Acer rubrum increases pit membrane compliance and embolism propagation.

Plant physiology·2026
Same author

Ground Effect on Undulation and Pumping Near Surfaces.

Integrative and comparative biology·2026
Same author

Mechanics-guided parametric modeling of intranasal spray devices and formulations for targeted drug delivery to the nasopharynx.

Frontiers in drug delivery·2025
Same author

A Marangoni swimmer pushing a particle raft under 1D confinement.

Soft matter·2025
Same author

Droplet outbursts from onion cutting.

Proceedings of the National Academy of Sciences of the United States of America·2025
Same author

Water entry and exit in nature: review.

Interface focus·2025
Same journal

Tension on dsDNA bound to ssDNA-RecA filaments may play an important role in driving efficient and accurate homology recognition and strand exchange.

Physical review. E, Statistical, nonlinear, and soft matter physics·2016
Same journal

Publisher's Note: Amplitude-phase coupling drives chimera states in globally coupled laser networks [Phys. Rev. E 91, 040901(R) (2015)].

Physical review. E, Statistical, nonlinear, and soft matter physics·2016
Same journal

Erratum: Shapes of sedimenting soft elastic capsules in a viscous fluid [Phys. Rev. E 92, 033003 (2015)].

Physical review. E, Statistical, nonlinear, and soft matter physics·2016
Same journal

Erratum: Attenuation of excitation decay rate due to collective effect [Phys. Rev. E 90, 022142 (2014)].

Physical review. E, Statistical, nonlinear, and soft matter physics·2016
Same journal

Publisher's Note: Role of connectivity and fluctuations in the nucleation of calcium waves in cardiac cells [Phys. Rev. E 92, 052715 (2015)].

Physical review. E, Statistical, nonlinear, and soft matter physics·2016
Same journal

Publisher's Note: Lattice Boltzmann approach for complex nonequilibrium flows [Phys. Rev. E 92, 043308 (2015)].

Physical review. E, Statistical, nonlinear, and soft matter physics·2016
See all related articles

This study unifies two turbulence theories to explain non-Gaussian velocity differences. Applying this unified approach to Couette-Taylor turbulence data provides a log-normal distribution for the intensive parameter, accurately matching observed probability distribution functions.

Area of Science:

  • Fluid Dynamics
  • Turbulence Research
  • Statistical Mechanics

Background:

  • Non-Gaussian probability distribution functions (PDFs) are observed in turbulent velocity differences.
  • Existing theories by Castaing and Beck-Cohen offer different explanations for these PDFs.

Purpose of the Study:

  • To unify the Castaing and Beck-Cohen approaches for explaining non-Gaussian PDFs in turbulence.
  • To develop a method for determining subsystem size within the Beck-Cohen framework.
  • To apply the unified approach to experimental Couette-Taylor turbulence data.

Main Methods:

  • Unification of two distinct theoretical frameworks for turbulence PDFs.
  • Development of a method to determine subsystem size based on local thermodynamic equilibrium.

Related Experiment Videos

  • Application to Couette-Taylor turbulence data at a Reynolds number of 540,000.

    • Main Results:

    • Demonstrated a relationship between the Castaing and Beck-Cohen methods.
    • Successfully determined subsystem size for the Beck-Cohen approach.
    • Observed a log-normal distribution for the intensive parameter in Couette-Taylor turbulence.
    • Achieved excellent agreement between the model's predicted PDFs and experimental data.

    Conclusions:

    • The unified approach successfully explains non-Gaussian velocity difference PDFs.
    • The method provides a robust framework for analyzing turbulence data.
    • This work advances the understanding of statistical properties in turbulent flows.