A+BC Reaction Fronts in Hele-Shaw Cells Under Modulated Gravitational Acceleration

  • Laurence Rongy
  • Kerstin Eckert
  • Anne De Wit
Part of the Springer Proceedings in Complexity book series (SPCOM)


We study the dynamics of A+BC reaction fronts propagating under modulated gravitational acceleration by means of parabolic flight experiments and numerical simulations. We observe an accelerated front propagation under hyper-gravity along with a slowing down of the front under low gravity. By reaction-diffusion-convection simulations of an A+BC front propagating in a thin layer, we can relate this periodic modulation of the front position to the amplification and decay, respectively, of the buoyancy-driven double vortex associated with the front propagation. A correlation between grey-value changes in the experimental shadowgraph images and characteristic changes in the concentration profiles are obtained by a numerical simulation of the imaging process (Eckert et al., Phys. Chem. Chem. Phys., 14:7337–7345, 2012).


Rayleigh Number Gravitational Acceleration Reaction Front Normal Gravity Front Position 
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Copyright information

© Springer International Publishing Switzerland 2013

Authors and Affiliations

  • Laurence Rongy
    • 1
  • Kerstin Eckert
    • 2
  • Anne De Wit
    • 1
  1. 1.Nonlinear Physical Chemistry Unit, Service de Chimie Physique et Biologie Théorique, Faculté des SciencesUniversité Libre de Bruxelles (ULB)BrusselsBelgium
  2. 2.Institute of Fluid MechanicsTechnische Universität DresdenDresdenGermany

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