A Comparison of Methods Used in Interfering Lifting Surface Theory,
ADVISORY GROUP FOR AEROSPACE RESEARCH AND DEVELOPMENT PARIS (FRANCE)
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This report contains a summary and comparison of methods used to predict flow fields adjacent to and airloads acting on oscillating interfering lifting surfaces. Both subsonic and supersonic speeds are considered. A number of configurations and parameters were established by the Structures and Materials Panel. The configurations included specific geometries and combinations of wing, horizontal tail and fin and the parameters varied included Mach number, reduced frequency, mode of oscillation and flow field region. AGARD members then voluntarily made calculations for the established configurations and parameters using the methods operational in their countries. Five countries contributed and the individual results, comparison and analysis are contained in this report.