HEAT AND MASS TRANSFER IN TURBULENT FLOWS

CALCULATION OF THE STATISTICAL CHARACTERISTICS 
OF A TURBULENT FLOW UNDER THE ACTION OF EXTERNAL FORCES

V. A. Babenko and Yu. V. Zhukova

UDC 532.517.4

A study is made of the statistical characteristics of 
isotropic velocity and scalar fields in supply of the kinetic energy 
of turbulence from the energy of the average flow. Two models based 
on the distributions of the kinetic turbulence energy and the intensity 
of scalar-field pulsations by wave numbers and length scales are used 
for calculation of the statistical characteristics of turbulent velocity 
and scalar fields. The calculation results are compared to the data 
of the direct numerical modeling performed under the same initial 
conditions.

A. V. Luikov Heat and Mass Transfer Institute, National 
Academy of Sciences of Belarus, 15 P. Brovka Str., Minsk, 220072, 
Belarus; email: svaturb@nsl.hmti.ac.by. Translated from Inzhenerno-Fizicheskii 
Zhurnal, Vol. 79, No. 1, pp. 148-154, January-February, 2006. 
Original article submitted December 10, 2004.