Journal of Engineering Physics and Thermophysics
is a translation of Inzhenerno-fizicheskii Zhurnal,
a publication of the Academic Scientific Complex
"A. V. Luikov Heat and Mass Transfer Institute"
of the National Academy of Sciences of Belarus
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A CLOSED EQUATION FOR THE JOINT PROBABILITY
DENSITY FUNCTION OF THE MAGNITUDES OF FLUCTUATIONS
OF A TURBULENT SCALAR REACTING FIELD AND ITS GRADIENT
V. A. Sosinovich , V. A. Babenko ,
and Yu. V. Zhukova
UDC 532.517.4
We derived a closed system of equations for calculating
the single-point joint probability density function (JPDF)
of the magnitudes of fluctuations of a scalar reacting field
and its gradient. The system of equations includes an
equation for the JPDF and two equations for functions that
describe the distribution of turbulent energy and of the
reacting-scalar intensity over various length scales. The
latter functions are necessary for calculation of the
time-dependent coefficients in the equation for the JPDF.
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JEPTER74920199816
JEPTER7492016