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Influence of droplet spatial distribution on spray evaporation

Rousseau, Lola and Rouzaud, Olivier and Lempereur, Christine and Orain, Mikael and Simonin, Olivier Influence of droplet spatial distribution on spray evaporation. (2019) In: ILASS–Europe 2019, 2 September 2019 - 4 September 2019 (Paris, France).

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Official URL: https://ilass19.sciencesconf.org/browse/author?authorid=678735

Abstract

In aero-engines, fuel is injected as a liquid which involves two-phase flow combustion. Consequently, different phenomena such as atomization, droplet dispersion by turbulence or spray evaporation impact combustion processes. In order to study spray combustion, an experimental test rig has been developed at ONERA to partially feature the flow conditions inside the combustion chamber of a turbo-reactor. Experimental campaigns have been conducted in non-reactive and reactive conditions to obtain an experimental database. The present paper focuses on the correlation between droplet density and the nearest-neighbour droplet distance obtained from the analysis of Mie scattering images under non-reactive conditions. Results show that the nearest-neighbour droplet distance varies linearly with the inverse square-root of mean spray density. Findings are compared with the theoretical law of Hertz-Chandrasekhar and the regular arrangement law.

Item Type:Conference or Workshop Item (Paper)
Additional Information:This article is available at : https://ilass19.sciencesconf.org/browse/author?authorid=678735. This work is licensed under a Creative Commons 4.0 International License (CC BY-NC-ND 4.0).
HAL Id:hal-02966939
Audience (conference):International conference proceedings
Uncontrolled Keywords:
Institution:French research institutions > Centre National de la Recherche Scientifique - CNRS (FRANCE)
Université de Toulouse > Institut National Polytechnique de Toulouse - Toulouse INP (FRANCE)
French research institutions > Office National d'Etudes et Recherches Aérospatiales - ONERA (FRANCE)
Université de Toulouse > Université Toulouse III - Paul Sabatier - UT3 (FRANCE)
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Funders:
Region Occitanie
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Deposited On:14 Oct 2020 13:36

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