Revisiting D2-law for the evaporation of dilute droplets
Revisiting D2-law for the evaporation of dilute droplets
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DOI：
10.1063/5.0051078
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发表时间：
2021-05-01
影响因子：
4.6
通讯作者：
Picano, F.
中科院分区：
文献类型：
--
作者：
Dalla Barba, F.;Wang, J.;Picano, F.
In a wide range of applications, the estimate of droplet evaporation time is based on the classical D-2-law, which, assuming a fast mixing and fixed environmental properties, states that the droplet surface decreases linearly with time at a determined rate. However, in many cases the predicted evaporation rate is overestimated. In this Letter, we propose a revision of the D-2-law capable of accurately determining droplet evaporation rate in dilute conditions by a proper estimate of the asymptotic droplet properties. Besides a discussion of the main assumptions, we tested the proposed model against data from direct numerical simulations finding an excellent agreement for predicted droplet evaporation time in dilute turbulent jet-sprays. Published under license by AIP Publishing.
