Two approaches to modelling the heating of evaporating droplets

Sergei Sazhin, Mansour Al Qubeissi, Jianfei Xie

Research output: Contribution to journalArticlepeer-review


Two approaches to modelling the heating of evaporating droplets have beenwidely used in engineering applications. In the the requirement that droplet evaporation rates, inferred from steady-state equations for mass and heat balance, should be the same. The second approach is based on the direct calculation of the distribution of temperature inside droplets assuming that their thermal conductivity is not in are compared for the case of stationary droplets in conditions relevant to Diesel engines. It is pointed out that although the trends of time evolution offirst approach the heat rate supplied to the droplets to raise their temperatures, q˙d, is derived fromfinitely large. The implications of these two approachesq˙ d predicted by both approaches are similar, actual values of q predicted droplet surface temperatures, radii and evaporation times. Possible reasons for these differences are discussed.˙ d predicted by these approaches can be visibly different. This difference can lead to noticeable differences in
Original languageEnglish
Pages (from-to)353-356
Number of pages4
JournalInternational Communications in Heat and Mass Transfer
Publication statusPublished - 13 Aug 2014

Bibliographical note

© 2014. This manuscript version is made available under the CC-BY-NC-ND 4.0 license


  • Droplet heating
  • Droplet evaporation
  • n-Dodecane
  • Heat/mass transfer


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