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Evaporation of bi-component droplets in a heated, highly turbulent flow

Moreau, Florian and Bazile, Rudy Evaporation of bi-component droplets in a heated, highly turbulent flow. (2012) Experiments in Fluids, 53 (2). 331-342. ISSN 0723-4864

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Official URL: http://dx.doi.org/10.1007/s00348-012-1292-6

Abstract

This work aims to understand the phenomena that occur in a combustion chamber where multi-component fuel droplets are injected. Many evaporation models exist but the influence of turbulence on spray vaporization is not yet well understood. This study gives a useful database to improve these models. The objective of the work is to measure the dispersion and the evaporation of bi-component (octane/3-pentanone) droplets and the resulting vapor mixing in a well-known, heated, highly turbulent channel flow. The carrier flow shows high turbulence levels, flat profiles for the mean velocity and the velocity fluctuations. The injected droplets have a large variety of behaviors due to the large polydispersion and to the turbulence. The evolution of 3-pentanone liquid concentration, mass flux, and droplet clusters are described. Mean concentration, fluctuations of concentration, and mixing of the vapor phase are characterized.

Item Type:Article
Additional Information:Thanks to Springer editor. The definitive version is available at http://link.springer.com The original PDF of the article can be found at Experiments in Fluids website : http://dx.doi.org/10.1007/s00348-012-1292-6
HAL Id:hal-00957385
Audience (journal):International peer-reviewed journal
Uncontrolled Keywords:
Institution:French research institutions > Centre National de la Recherche Scientifique - CNRS (FRANCE)
Université de Toulouse > Institut National Polytechnique de Toulouse - INPT (FRANCE)
Université de Toulouse > Université Toulouse III - Paul Sabatier - UPS (FRANCE)
Laboratory name:
Funders:
PFA-ASTRA program, a collaboration between the CNRS and ONERA institutions
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Deposited By: Rudy BAZILE
Deposited On:18 Dec 2013 13:44

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