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Comparison of calculated and
experimental characteristics of elevon operated missiles Slobodan Mandić Dragoslav Nikolić Milan Milošević Zoran Gajić Ivan Šoštarić Srđan Stojković The derivatives of aerodynamic coefficients received
through the DMAC programme (semi-empirical methods) and those received on the
basis of the aerodynamic coefficients of the aileron operated missiles measured
in the T-38 wind tunnel have been compared. Derivative curves of aerodynamic
coefficients are given as a function of the Mach number. The matching of the
calculated derivatives based on experiments shows that the DMCA programme may be
used for calculating derivatives
of aerodynamic coefficients of elevon
operated missiles. The comparison of aerdynamic coefficients resulting from the
MAC programme (method of the equivalent angle of attack) and the measured
aerodynamic coefficients in function of the angle of attack for a certain Mach
number is given. The matching of the aerodynamic
coefficients calculated with the help of the MAC programme and the measured
aerodynamic coefficients even in the aras of explicit nonlinearity shows the
possibilities of this programme which can be applied exclusively where the
elevons have not been removed. Ključne reči: aerodynamics, semi-empiric aerodynamic method, the method of equivalent angle of attack, gradients of aerodynamic coefficients, nonlinear aerodynamic coefficients. |