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Coupled study of the film and spray on a basic annular prefilming airblast atomizer

Gosselin, Valentin and Ferret, Bernard and Bazile, Rudy Coupled study of the film and spray on a basic annular prefilming airblast atomizer. (2017) In: 28th European Conference on Liquid Atomization and Spray Systems (ILASS 2017), 6 September 2017 - 8 September 2017 (Valencia, Spain).

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Official URL: http://dx.doi.org/10.4995/ILASS2017.2017.4626

Abstract

One way to increase efficiency and reduce pollution in transport and energetic domain is designing fuel injectors with better atomization. In this work, experiments were performed on a prefilming airblast atomizer often used in gas turbine engines. For this purpose, a new injector was designed to visualize the prefilming zone and the primary atomization together. The flow configuration corresponds to an annular liquid film sheared by inner high velocity airflows. High speed Shadowgraphy was used to observe film and spray, liquid film frequency, wave velocity and wave deformation, primary breakup regime. Finally, a link between liquid film and the primary atomization are shown first qualitatively and after quantitatively.

Item Type:Conference or Workshop Item (Paper)
Additional Information:Thanks to the Institute for liquid atomization and spray systems. Licensed under a Creative Commons 4.0 International License (CC BY-NC-ND 4.0).
HAL Id:hal-02046494
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)
Université de Toulouse > Université Toulouse III - Paul Sabatier - UT3 (FRANCE)
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Deposited On:22 Feb 2019 15:27

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