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Atomization and Sprays
Fator do impacto: 1.262 FI de cinco anos: 1.518 SJR: 0.814 SNIP: 1.18 CiteScore™: 1.6

ISSN Imprimir: 1044-5110
ISSN On-line: 1936-2684

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Atomization and Sprays

DOI: 10.1615/AtomizSpr.2019028987
pages 1123-1144

ATOMIZATION AND BREAKUP OF LIQUID KEROSENE AT ELEVATED PRESSURE

Camille Bilger
Department of Engineering, University of Cambridge, Trumpington Street, Cambridge, CB2 1PZ, United Kingdom
R. Stewart Cant
Department of Engineering, University of Cambridge, Trumpington Street, CB2 1PZ, Cambridge, United Kingdom

RESUMO

The Robust Conservative Level-Set (RCLS) interface-capturing method is evaluated at conditions relevant to the atomisation of liquid kerosene in jet engines at elevated ambient pressure and temperature. The RCLS method is associated with an arbitrarily high-order WENO scheme to solve the transport equation for the level-set variable, together with an algorithm to capture the droplet dynamics. This ensures that droplets can make the transition from the Eulerian modelling framework to a Lagrangian formulation thereby enabling the evaluation of droplet field characteristics such as diameter, velocity or mass. The many hydrodynamic instabilities arising are captured with useful accuracy while making an efficient use of grid cells, and are found to compare well qualitatively with the available experimental data. The results also highlight the ability of the approach to allow for a statistical analysis of the emerging spray in a cost-effective manner.


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