28th Congress of the International Council of the Aeronautical Sciences, 23 - 28 September 2012, Brisbane, Australia
Paper ICAS 2012-4.10.1

IMPROVED MODELLING OF VORTICAL MIXING FOR THE SIMULATION OF EFFICIENT PROPULSION SYSTEMS

S. Saegeler, J. Lieser*, C. Mundt
Univ. der Bundeswehr Munich, Germany; *Rolls-Royce Deutschland, Germany

Keywords: hot jets, lobed mixer, turbulence, temperature correction

A numerical study for mixing flows in an aeroengine’s exhaust system is carried out. Emphasis is put on the consideration of the effect of temperature gradients. Initial results show an encouraging outcome by a better turbulence model, which increases the diffusion by incorporating those temperature effects.

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