Conference Proceedings

Computational fluid dynamics analysis of the 1303 unmanned combat air vehicle

J Brett, L Tang, N Hutchins, A Valiyff, A Ooi

17th Australasian Fluid Mechanics Conference 2010 | Published : 2010

Abstract

This paper examines the flow over the 1303 UCAV platform, with a focus on the behaviour that causes the onset of pitch break. The effect of applying wash in and wash out on the outer section of the wing are also examined. Simulations were performed using the commercial CFD package FLUENT, using an incompressible, steady solver with the κ-ω SST turbulence model at a Reynolds number of 5.6 million and Mach 0.25. Water tunnel flow visualisation experiments were also performed to validate the numerical model and provide further understanding of the flow field.

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