CONTROL OF THE PARAMETERS OF AN EXHAUST JET BY INCREASING 
THE EDDY VISCOSITY AT THE NOZZLE EDGE

A. N. Kucherov

UDC 533.6

We studied the possibility of changing the parameters 
of the exhaust wake in the far field of the jet behind a large passenger 
aircraft (aerobus) by increasing the coefficient of eddy viscosity 
at the edge of the nozzle of a double-flow engine with a high double-flow 
ratio ( >10 ) without mixing with the aid of artificial 
turbulizers created in the outer and inner ducts. Within the model 
of turbulence with one differential equation for the coefficient of 
viscosity, we obtained numerical solutions for velocity, temperature, 
concentrations of vapor and condensate, and the coefficient of viscosity 
for different variants which disclose the essence of a physico-mathematical 
model of the phenomenon and predict possible changes of the parameters 
of the exhaust jet with artificial increase of viscosity in the initial 
section and the jet volume.

Prof. N. E. Zhukovskii Central Aerohydrodynamic Institute, 
1 Zhukovskii Str., Zhukovskii, Moscow Region, 140180, Russia; email: 
ank@aerocentr.msk.su. Translated from Inzhenerno-Fizicheskii Zhurnal, 
Vol. 76, No. 6, pp. 29-37, November-December, 2003. Original 
article submitted March 18, 2003.