Relations for rotary derivatives of wing rolling- and yawing-moment coefficients

Aviation technics and technology


Аuthors

Golovkin M. A.

Central Aerohydrodynamic Institute named after N.E. Zhukovsky, TsAGI, 1, Zhukovsky str., Zhukovsky, Moscow Region, 140180, Russia

e-mail: spintest@tsagi.ru

Abstract

Analytic expressions to determine the rotary derivatives of wing rolling- and yawing-moment coefficients with respect to total angular velocity and its components are found using vector relations with approximation of strip hypothesis. The obtained relations can be used to assess the specified derivatives of the high-aspect wing in all angle-of-attack ranges in case distributions of normal and longitudinal force coefficients and angle of attack derivatives in wing sections and inductive wash spanwise are known. Expressions for swept wings, constant chord wings as well as wings with elliptic law of spanwise load distribution are presented.

Keywords:

wing, rolling and yawing moments, rotary derivatives, angular velocity components


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