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We examine the dynamics of a sessile droplet sitting on a uniformly heated solid, undergoing evaporation. We use a finite element formulation to solve the axisymmetric time-dependent problem and perform a linear stability analysis taking into account 3D perturbations around this base-state. Our numerical results show that the temperature gradients, which are a natural consequence of the evaporation process, give rise to instabilities including the presence of hydrothermal waves in close agreement with previous experimental observation. We discuss the mechanisms which give rise to these instabilities.
|Title of host publication||APS/DFD Fall Meeting, Baltimore, Maryland, USA|
|Publication status||Published - Nov 2011|
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- 1 Invited talk
Fluid flow and Mixing: Direct Numerical Simulations Towards Predicting Complex Multiphase Flows - Some Examples
Prashant Valluri (Speaker)25 Mar 2013
Activity: Academic talk or presentation types › Invited talk