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Download e-book for kindle: Aerodynamics by N.F. Krasnov

By N.F. Krasnov

ISBN-10: 0862492653

ISBN-13: 9780862492656

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Sample text

Ch. 1. gasic Information from Aerodynamics 43 III the othl'r two fOI'lnulos, the corresponding symbols cUa and c'a <1m introduced. The l'",le'-onl quanti lies Me known as the aerodynamic lift coefficient and thE' aerodynamic side-force coefficient. \;Vith ~I view to the obo\'e. 4) for the forces. lu' pitching mom(,nt ,1[ •. he Ilrea dS arc Ya

A two-point correlation cOf'flicicnt. Its expression clln he Wl'itten Wig. 3') Whell studying a tJlree-dimensional turbulent now. one usually ('onsiders fI large llumber of such coefliciellts. The ('oncept of the turbu)('nc(' scale is introduced to characterize this now. 4) The turbuleuce sCflle is a linear dimension characterizing the length of the section of a flow on which fluid particles move "in Ch. tulltiOIlS, By loving together the points being eonsidel'ed in a tllroulent flow. -point corr€>lation coefficient.

Vs. a; c-polsr ot hrst kind of the forces and moments acting on the same craft. These relations are used to fmd the coefficients C 2 and m 2 , respectively, converted to the new characteristic dimensions 8 2 and L 2: c2 = c1 (8 1 /8 2 ), m 2 = ml (8 1 L I /8 2L 2) where the pr~vious dimensions 8 1 , L] and aerodynamic coefficients c1 ' ml , as well as the new dimensions 8 2 , L2 are known. f~~~da~r~~e f:r~:: o~~ which is the same, between the lift and drag coefficients in a flight path coordinate system.

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Aerodynamics by N.F. Krasnov


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