Abstract
Across traveling autocatalytic fronts, density differences due to composition and temperature changes can lead to buoyancy-driven hydrodynamic instabilities deforming the front by convective motions. We study here the influence of heat losses through the walls of the reactor on the stability of such exothermic fronts in the gravity field. The stability domain is computed numerically in a parameter space spanned by the solutal R c and thermal R T Rayleigh numbers of the problem for various values of the Newton's coefficient α quantifying the intensity of heat losses.
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