Numerical Simulation of Hydrodynamic Instabilities in an Advective-reactive-diffusive System with a Thermal Gradient

Abstract

An advective-diffusive-reactive system can give rise to instabilities at gas-liquid or liquidliquid interfaces, composed of one or more species that may undergo chemical reactions in an isothermal environment. The dynamics of these instabilities, of the RayleighTaylor or SaffmanTaylor type, are known as fingering patterns. The introduction of thermal gradients in such systems allows for the investigation of temperature as a control parameter for these instabilities. In this work, we show how these patterns are modified by thermal effects in simple scenarios involving a 2D domain.