Description / Abstract:
"An Assessment of Planar Waves" provides background on some of
the history of planar waves, which are time-dependent variations of
inlet recovery, as well as establishing a hierarchy for
categorizing various types of planar waves. It further identifies
approaches for establishing compression-component and engine
sensitivities to planar waves, and methods for accounting for the
destabilizing effects of planar waves. This document contains an
extensive list and categorization (see Appendix A) of references to
aid both the newcomer and the practitioner on this subject.
The committee acknowledges that this document addresses only the
impact of planar waves on compression-component stability and does
not address the impact of planar waves on augmenter rumble, engine
structural issues, and/or pilot discomfort.