Dissolution and solutal convection in partially miscibile liquid systems (Q1434601)

The authors investigate numerically the behaviour of solutal plumes rising around a droplet of methanol during the dissolution in a matrix of cyclohexane. Similar to the experiments, the authors' numerical results show that the plume undergoes oscillations and contractions towards the plume centerline. The mechanism is very similar to other oscillatory instabilities of candle flames or of isothermal buoyant jets.