The development of computational fluid dynamics (CFD) methods for unsteady aerodynamic analysis is described. Special emphasis is placed on considerations that are required for application of the methods to unsteady aerodynamic flow problems. Two broad categories of topics are presented to illustrate the major points. Although primary application of these CFD methods is to relatively low frequency oscillatory phenomena such as flutter, the ideas that are presented may be of value to developers of computational aeroacoustic methods for predicting high frequency acoustics.
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