CHARACTERISTIC FEATURES OF THE PROCESS
OF MIXTURE FORMATION UPON FUEL INJECTION
INTO A HIGH-TEMPERATURE AIR FLOW

A. I. Maiorova and V. V. Tret'yakov

UDC 532.529.5:536.24

Physical models of the processes of interphase heat and 
mass transfer and computational techniques based on them are suggested. 
The problem of the interaction of fuel droplets with a high-temperature 
air flow is solved numerically. It is shown that injection of a fuel 
by a spray atomizer may cause a substantial change in the gas temperature. 
With pneumatic spraying of a fuel by a cold air jet the influence 
of interphase exchange on the characteristics of the main flow is 
insignificant. Upon injection of a hot spraying air the influence 
of fuel injection on the formation of temperature fields is more appreciable. 
However, here the gas is cooled less than in the case of spraying 
by a jet.

P. I. Baranov Central Scientific Research Institute of 
Aircraft Engines, 2 Aviamotornaya Str., Moscow, 111116, Russia; email: 
majorova@ciam.ru. Translated from Inzhenerno-Fizicheskii Zhurnal, 
Vol. 81, No. 2, pp. 250-258, March-April, 2008. Original article 
submitted May 23, 2006; revision submitted September 12, 2007.