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

Convective structures in a two-layer gel-liquid excitable medium

Perez-Villar1, Munuzuri, Perez-Munuzuri

  • 1Group of Nonlinear Physics, Faculty of Physics, University of Santiago de Compostela, 15706 Santiago de Compostela, Spain.

Physical Review. E, Statistical Physics, Plasmas, Fluids, and Related Interdisciplinary Topics
|November 23, 2000
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

Iodine in the treatment of lupus erythematosus.

Actas dermo-sifiliograficas·2010
Same author

Lifetime enhancement of scroll rings by spatiotemporal fluctuations

Physical review. E, Statistical physics, plasmas, fluids, and related interdisciplinary topics·2000
Same author

Brownian motion of spiral waves driven by spatiotemporal structured noise

Physical review letters·2000
Same author

Frequency-modulated autowaves in excitable media.

Physical review. E, Statistical physics, plasmas, fluids, and related interdisciplinary topics·1996
Same author

Synchronization waves in arrays of driven chaotic systems.

Physical review. E, Statistical physics, plasmas, fluids, and related interdisciplinary topics·1996
Same author

Long-term vortex interaction in active media.

Physical review. E, Statistical physics, plasmas, fluids, and related interdisciplinary topics·1996
Same journal

Efficient Monte Carlo simulations using a shuffled nested Weyl sequence random number generator.

Physical review. E, Statistical physics, plasmas, fluids, and related interdisciplinary topics·2002
Same journal

Spatiotemporal dynamics of electromagnetic pulses in saturating nonlinear optical media with normal group velocity dispersion.

Physical review. E, Statistical physics, plasmas, fluids, and related interdisciplinary topics·2002
Same journal

Soliton-breather reaction pathways.

Physical review. E, Statistical physics, plasmas, fluids, and related interdisciplinary topics·2002
Same journal

Calculation of electromagnetic properties of regular and random arrays of metallic and dielectric cylinders.

Physical review. E, Statistical physics, plasmas, fluids, and related interdisciplinary topics·2002
Same journal

Electromagnetic convective cells in a nonuniform dusty plasma.

Physical review. E, Statistical physics, plasmas, fluids, and related interdisciplinary topics·2002
Same journal

Stability of neural networks and solitons of field theory.

Physical review. E, Statistical physics, plasmas, fluids, and related interdisciplinary topics·2002
See all related articles

Wave propagation in a two-layer system triggers convection. The study explores how interface exchange rates and fluid-chemical coupling influence convective roll formation during chemical reactions.

Area of Science:

  • Chemical kinetics and fluid dynamics
  • Non-equilibrium chemical systems
  • Pattern formation in reaction-diffusion systems

Background:

  • The Belousov-Zhabotinsky reaction is a classic example of a chemical oscillator exhibiting complex spatiotemporal patterns.
  • Convection can arise in reaction-diffusion systems due to buoyancy effects, influencing pattern formation.
  • Coupling chemical reactions with fluid dynamics can lead to novel emergent phenomena.

Purpose of the Study:

  • To investigate the onset of convection driven by wave propagation in a two-layer liquid-gel system.
  • To analyze the influence of interfacial exchange rates, liquid layer width, and fluid-chemical coupling on convective patterns.
  • To understand the formation of convective rolls associated with wave front propagation in the Belousov-Zhabotinsky reaction.

Related Experiment Videos

Main Methods:

  • Numerical simulations using a three-variable Oregonator model.
  • Coupling the chemical model with Navier-Stokes hydrodynamic equations under the Boussinesq approximation.
  • Investigating a two-layer system (liquid and gel) with interfacial chemical concentration exchange.

Main Results:

  • Wave propagation on the gel surface initiates convection in the liquid layer.
  • The system can form two counter-rotating convective cells or disordered patterns depending on system parameters.
  • Interfacial exchange rate, liquid layer width, and coupling strength significantly affect convective roll formation.

Conclusions:

  • Wave propagation is a viable mechanism for initiating convection in chemically active systems.
  • The interplay between chemical waves and fluid dynamics leads to diverse convective patterns.
  • This study provides insights into pattern formation in coupled chemical and hydrodynamic systems.