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

Thin front propagation in random shear flows.

M Chinappi1, M Cencini, A Vulpiani

  • 1Dipartimento di Meccanica e Aeronautica, Università di Roma la Sapienza, Via Eudossiana 18, I-00184 Roma, Italy.

Physical Review. E, Statistical, Nonlinear, and Soft Matter Physics
|February 21, 2006
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

Topical issue on quantitative AI in complex fluids and complex flows: challenges and benchmarks.

The European physical journal. E, Soft matter·2023
Same author

Revealing the Nonequilibrium Nature of a Granular Intruder: The Crucial Role of Non-Gaussian Behavior.

Physical review letters·2023
Same author

Nonequilibrium ensembles for the three-dimensional Navier-Stokes equations.

Physical review. E·2022
Same author

Handy fluctuation-dissipation relation to approach generic noisy systems and chaotic dynamics.

Physical review. E·2021
Same author

Joint assessment of density correlations and fluctuations for analysing spatial tree patterns.

Royal Society open science·2021
Same author

Alignment of Nonspherical Active Particles in Chaotic Flows.

Physical review letters·2019
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

Front propagation in time-dependent flows is governed by flow-reaction time scales. Flow correlation and wrinkling time (tw) critically influence propagation speed and spatial patterns, impacting realistic flow scenarios.

Area of Science:

  • Fluid dynamics
  • Chemical kinetics
  • Statistical physics

Background:

  • Front propagation in fluid flows is essential in many scientific fields.
  • Understanding the interplay between flow dynamics and reaction kinetics is complex.
  • The geometrical optics limit simplifies analysis for fast reactions and thin fronts.

Purpose of the Study:

  • Investigate front propagation in time-dependent laminar flows.
  • Analyze the influence of random shear flows modeled by Ornstein-Uhlembeck processes.
  • Determine the critical parameters governing front speed and spatial patterns.

Main Methods:

  • Analysis in the geometrical optics limit (fast reaction, thin fronts).
  • Modeling time-dependent shear flows using Ornstein-Uhlembeck processes.

Related Experiment Videos

  • Deriving relationships between flow time correlation and reaction dynamics.

    • Main Results:

    • The ratio of flow time correlation to wrinkling time (tw) is crucial.
    • This ratio dictates front propagation speed and spatial patterns.
    • Identified the bending phenomenon (decreased speed at high flow intensities).

    Conclusions:

    • Flow-reaction time scale correlation is a key determinant of front behavior.
    • The wrinkling time (tw) provides an intrinsic reaction time scale.
    • Findings are relevant for understanding realistic, complex flow systems.