The most recent results referring to the hydrodynamic and kinetic modelling of droplet heating and evaporation are briefly summarised. Two new solutions to the heat conduction equation, taking into account the effect of the moving boundary during transient heating of an evaporating droplet, are discussed. The first solution is the explicit analytical solution to this equation, while the second one reduces the solution of the differential transient heat conduction equation to the solution of the Volterra integral equation of the second kind. It has been pointed out that the new approach predicts lower droplet surface temperatures and slower evaporation rates compared with the traditional approach. A simplified model for multi-component droplet heating and evaporation, based on the analytical solution of the species diffusion equation inside droplets, is reviewed. A new algorithm, based on simple approximations of the kinetic results for droplet radii and temperatures, suitable for engineering applications, is discussed.
|Title of host publication||5th International Workshop on Multi-Rate Processes and Hysteresis (MURPHYS 2010)|
|Publication status||Published - 2011|
|Event||5th International Workshop on Multi-Rate Processes and Hysteresis (MURPHYS 2010) - Pecs, Hungary|
Duration: 1 Jan 2011 → …
|Workshop||5th International Workshop on Multi-Rate Processes and Hysteresis (MURPHYS 2010)|
|Period||1/01/11 → …|
Bibliographical noteJournal of Physics: Conference Series; Volume 268, Number 1