Skip to Main content Skip to Navigation
Journal articles

Heat convection within evaporating droplets in strong aerodynamic interactions

Abstract : The temperature field within evaporating ethanol droplets is investigated, relying on the two-color laser induced fluorescence (LIF) measurement technique and on a Direct Numerical Simulation (DNS). The configuration studied corresponds to a monodisperse droplet stream in a diffusion flame sustained by the droplet vapor. An experimental probe volume, small compared to the droplet size, is used to characterize the temperature field within the droplets, whereas DNS takes into account key aspects of the droplet heating and evaporation such as the non-uniform and transient stress, and the mass and heat transfer coefficients at the droplet surface. These investigations reveal that the frictional stresses are strongly reduced due to the small spacing between the droplets. They also show that the Marangoni effect has a significant influence on the internal motion and hence on the internal temperature field.
Document type :
Journal articles
Complete list of metadata

Cited literature [23 references]  Display  Hide  Download

https://hal.univ-lorraine.fr/hal-01499162
Contributor : Guillaume Castanet <>
Submitted on : Friday, March 31, 2017 - 2:00:30 AM
Last modification on : Monday, March 29, 2021 - 4:03:07 PM
Long-term archiving on: : Saturday, July 1, 2017 - 12:22:31 PM

File

Castanet_IJHMT_2011.pdf
Files produced by the author(s)

Licence


Distributed under a Creative Commons Attribution - NonCommercial - NoDerivatives 4.0 International License

Identifiers

Collections

Citation

Guillaume Castanet, Bruno Frackowiak, Cameron Tropea, Fabrice Lemoine. Heat convection within evaporating droplets in strong aerodynamic interactions. International Journal of Heat and Mass Transfer, Elsevier, 2011, 54 (15-16), pp.3267-3276. ⟨10.1016/j.ijheatmasstransfer.2011.03.060⟩. ⟨hal-01499162⟩

Share

Metrics

Record views

234

Files downloads

636