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Methods of modeling the near and far vortex wakes of aircrafts with turbojets and air
propellers are considered separately. The results of predicting vortex wakes of a series
of domestic and foreign aircrafts are presented. The effect of number of factors is
taken into account in this case: turbulence and atmosphere stratification, presence of
side wind at take-off-landing regimes. The mathematical model of a distant vertical
trace behind the airliners, basing on a method of discrete vortices and on N.E.
Zhukovsky's theorem of lifting force is described. Results of researches of
characteristics of a distant trace behind some airliners are presented. The computer
time consumption while modeling the vortex wakes according to the proposed method
is 3–4 orders less than in the case of using the well-known numerical methods.
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