국내 최대 기계 및 로봇 연구정보

공학설계D/B

공학설계D/B 게시판 내용
Volume Title	Aerodynamics
Volume No	AEROFOILS AND WINGS - General. Aerofoils at subcritical speeds - lift, pitching moment.
DATA Title	Geometrical properties of cranked and straight tapered wing planforms.
DATA Item	76003
KEYWORD	aerodynamic, angle, chord, geometry, line, mean, standard, sweep, wing
ISBN	0 85679 136 9
ABSTRACT	ESDU 76003 gives expressions (in terms of wing geometry) for the length, and position of the quarter-chord point, of the standard mean and aerodynamic mean chords of a wing whose leading- and trailing-edges are formed of straight line segments and whose leading- and trailing-edges have any arbitrary number of cranks; the wing has either pointed or straight streamwise tips. For the special case of the straight-tapered wing, curves give the lengths of the chords and their quarter chord position as a function of taper ratio, centre-line chord, aspect ratio, and quarter-chord sweep. Also given for that case are curves relating the sweep angles of any two fixed percentage chord lines. Finally an Appendix shows how to obtain the geometry of a straight-tapered wing equivalent to some arbitrary planform mounted on a fuselage so that the two have the same aerodynamic characteristics. This technique has been found most useful by ESDU as a means of correlating lifting surface aerodynamic data.