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Contrail microphysics in the near wake of a realistic wing through RANS simulations

Guignery, Florent and Montreuil, Emmanuel and Thual, Olivier and Vancassel, Xavier Contrail microphysics in the near wake of a realistic wing through RANS simulations. (2012) Aerospace Science and Technology, vol. 23 (n° 1). pp. 399-408. ISSN 1270-9638

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Official URL: http://dx.doi.org/10.1016/j.ast.2011.09.011

Abstract

This paper focuses on Steady Reynolds Average Navier Stokes simulations (RANS) of ice particles growth in the near field of a wing-injector configuration. The multiphysics multiphase flow solver CEDRE, enriched with a microphysical model, has been developed in order to simulate the impact of a more real aircraft geometry in contrail formation studies. As a first evaluation case, a simplified aircraft description, i.e. a NACA0012 2D wing with two injectors, has been used. Ice formation has been simulated by assuming water condensation and instantaneous freezing on activated soot particles, initially emitted by aircraft engines. Our investigation focuses on the near field, extending from the nozzle exit until eight wing spans. Although the main goal is to address the question of ice formation, the aerodynamic flow field has been investigated and numerical results compared with existing experimental data. The first results indicate that the exhaust jet is correctly wrapped around the vortex and that the pattern of dilution qualitatively matches observations in the near field. Sensitivity studies to humidity and to the initial soot particle radius have also been performed.

Item Type:Article
Additional Information:Thanks to Elsevier editor. The definitive version is available at http://www.sciencedirect.com The original PDF of the article can be found at Aerospace Science and Technology website :http://dx.doi.org/10.1016/j.ast.2011.09.011
Audience (journal):International peer-reviewed journal
Uncontrolled Keywords:
Institution:French research institutions > Centre National de la Recherche Scientifique - CNRS
Université de Toulouse > Institut National Polytechnique de Toulouse - INPT
French research institutions > Office National d'Etudes et Recherches Aérospatiales - ONERA
Université de Toulouse > Université Paul Sabatier-Toulouse III - UPS
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Deposited By: Olivier THUAL
Deposited On:06 Nov 2012 14:03

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