DERIVATION AND NUMERICAL SOLUTION OF A CLOSED 
EQUATION FOR THE SPECIFIC ISOSCALAR-SURFACE AREA 
IN A TURBULENT REACTIVE FLOW

V. A. Sosinovich, V. A. Babenko, and
Yu. V. Zhukova

UDC 532.517.4

Based on the equation obtained earlier for the joint 
probability density function of the fluctuations of an isotropic turbulent 
scalar field of a reagent and its gradient [Inzh.-Fiz. Zh., 71, 
No. 5, 827-849, 1998] the authors derived and numerically solved an equation 
for the specific isoscalar-surface area SIGMAt() in a turbulent reactive 
flow. The equation for SIGMAt() contains the single-point 
probability density function for pulsations of a reactive scalar and the time 
function that depend on the distribution of the energy of turbulent velocity 
pulsations and the intensity of scalar reagent pulsations by different length 
scales. The corresponding equations are written for all these functions.

JEPTER74920200016
JEPTER7492016