A COMPARISON OF TWO SUPERSONIC AERODYNAMICS METHODS USED IN FLUTTER ANALYSIS OF THE CF-18 AIRCRAFT

Authors
  1. Lee, B.H.K.
Corporate Authors
Institute for Aerospace Research, Ottawa ONT (CAN);Chief of Research and Development, Ottawa ONT (CAN) Director Research and Development Air
Abstract
In recent years, a number of studies on supersonic aerodynamics computations have appeared in the literature. This is motivated by the need of an efficient method for flutter analysis of high performance thin winged fighter aircraft. These methods are based on the velocity potential gradient formulation and do not suffer from the limitations of the traditional Mach box techniques which were widely used nearly a decade ago. A distinct advantage of these new developments is that multiple interfering lifting surface configurations can be modelled without any difficulties, and the possibilities of including bodies into the computer code make them extremely attractive. It appears that a supersonic counterpart to the subsonic doublet lattice method will become available in the near future.
Date of publication
15 Jun 1989
Number of Pages
13
DSTKIM No
91-04179
CANDIS No
71367
Format(s):
Hardcopy;Originator's fiche received by DSIS

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