Mathematical model of factors of the aerodynamic characteristics in longitudinal motion of a flight vehicle on large angles of attack in view of separated flow past

Aviation technics and technology


Аuthors

Zakharov M. A.

Moscow Aviation Institute (National Research University), 4, Volokolamskoe shosse, Moscow, А-80, GSP-3, 125993, Russia

Abstract

In the given activity with the purpose of increase of accuracy of modeling the new mathematical model of the aerodynamic characteristics with introduction of exact (non-linear) expressions of components , flow(streamlining,) appropriate to structure is offered. This model is unified for exact (non-linear) and approximate (linearized) expressions . It is supposed, that the static (non-linear) components can be determined under the data of wind-tunnel tests, and the values rotary derivative are updated. Two versions of analytical relation are offered and gives their analysis. The comparison of these functions is carried out(conducted) and their derivative with known [8]. On the basis of adopted relation there is a solution of a relaxation equation with the help of the program "MathCAD". Is considered(examined) errors of a linearization of deviation(rejection) x - and non-stationary making , appropriate structure of flow(streamlining).


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