21st Congress of International Council of the Aeronautical Sciences, Melbourne, Australia, 13-18 September, 1998
Paper ICAS-98-4.6.1

A METHOD FOR THE RAPID PREDICTION OF UNSTEADY LOADS OVER WINGS AT TRANSONIC SPEEDS

Nixon D.
Nwing Inc., USA

Keywords: rapid prediction, unsteady loads, wings, transonic speeds

Aeroelastic effects, including flutter, at transonic speeds are often predicted using linear theory rather than a nonlinear cfd method. The reasons for this include lack of confidence in the results of nonlinear cfd methods, the excessive set up time, and a long computing time. The method discussed here attempts to address some of these issues by using a new variant of strip theory. Preliminary results are encouraging.

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