Approximate Corrections for the Effects of Compressibility on the Subsonic Stability Derivatives of Swept Wings
Auteur : Lewis R. Fisher
Date de publication : 1949
Éditeur : National Advisory Committee for Aeronautics
Nombre de pages : 35
Résumé du livre
A method which has previously been presented for the estimation of the low-speed stability derivatives of swept wings is modified by means of the Prandtl-Glauert rule to yield approximate corrections for the first-order three-dimensional effects of compressible flow in the subsonic region. Corrections are presented in chart form for several aspect ratios and angles of sweep and may be computed rather simply for other aspect ratios and angles of sweep. Lift-curve slopes and values of damping in roll are compared with those obtained by use of a generally accepted method and are discussed in relation to unpublished data.