24th Congress of International Council of the Aeronautical Sciences, 29 August-3, September 2004, Yokohama, Japan
Paper ICAS 2004-2.1.3

SMALL DISTURBANCE NAVIER-STOKES METHOD: AN EFFICIENT TOOL FOR PREDICTING UNSTEADY AIR LOADS

A. Pechloff, B. Laschka
Institute for Fluid Mechanics, Aerodynamics Division, Technische Universität München, Boltzmannstr. 15, D-85747 Garching, Germany

Keywords: small disturbance Navier-Stokes equations, computational fluid dynamics, aeroelasticity

In regard to aeroelastic applications the otherwise common yet computationally expensive approach of time-accurately solving the unsteady Reynolds-averaged Navier-Stokes equations is not feasible. However, a numerical method based on the small disturbance formulation of these governing equations, as presented here, can provide an efficient and accurate tool for predicting aerodynamic loading.

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