Title: Computation validation on lateral jet interactions at supersonic speeds

Authors: Patrick Gnemmi; Patrick Gruhn; Michel Leplat; Christophe Nottin; Stefan Wallin

Addresses: French-German Research Institute of Saint-Louis (ISL), F-68301 Saint-Louis Cedex, France ' DLR, German Aerospace Centre, Linder Höhe, D-51147 Cologne, Germany ' ONERA, The French Aerospace Lab, 8 rue des Vertugadins, F-92190 Meudon, France ' MBDA-France, 1, Avenue Réaumur, F-92358 Le Plessis-Robinson Cedex, France ' Swedish Defence Research Agency (FOI), SE-16490 Stockholm, Sweden

Abstract: The objectives of the present Action Group AD/AG-48 of the 'Group for Aeronautical Research and Technology in EURope' (GARTEUR) on 'Lateral jet interactions at supersonic speeds' is to deeply analyse the effects of the hot-gas jet by the use of CFD simulations. At the end, the main goal is to define the most appropriate similarity parameters for wind-tunnel tests using cold gases. Experiments from DLR Cologne and ONERA/MBDA-France on generic missile models are used in order to achieve numerical simulations of the interaction between a lateral jet and a supersonic cross flow of a missile. These experiments using either a cold-air jet or a hot-gas jet, the latter produced by the combustion of a solid propellant, are well documented and the data are used for the validation of the numerical simulation using either an ideal gas or a multi-species fluid, respectively. The objective of the present work is only the validation of the numerical simulations by comparison with the DLR and ONERA/MBDA-France experiments. The action group members use the same computational meshes for the comparison of the numerical results got from different CFD codes solving 3D, turbulent, RANS equations.

Keywords: missiles; lateral jet interactions; hot-gas jet; cold-air jet; aerodynamics; numerical simulation; RANS computation; numerical results; experimental results; supersonic speed; CFD; computational fluid dynamics; wind tunnel testing; cold gases; missile models; modelling.

DOI: 10.1504/IJESMS.2013.052384

International Journal of Engineering Systems Modelling and Simulation, 2013 Vol.5 No.1/2/3, pp.68 - 83

Published online: 21 Feb 2013 *

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