APPLICATION OF A TWO-LAYER MODEL OF TURBULENCE IN CALCULATION
OF A BOUNDARY LAYERWITH A PRESSURE GRADIENT

K. N. Volkov

UDC 532.529:536.24

The characteristic features of the formulation of a two-layer
turbulence model and its application in calculation of near-wall
turbulent flows are considered. Factors that influence the
effectiveness of implementation of the model and ways of
expanding the limits of its applicability are discussed.
The possibilities of the two-layer model are demonstrated by
calculating a boundary layer on a flat plate with a longitudinal
pressure gradient. A comparison of the results of calculation
of the heat-transfer characteristics by the two-layer model,
two-parameter dissipation model, and Spalart-Allmaras model with
the data of a physical experiment and available correlations is made.

D. F. Ustinov Baltic State Technical University "Voenmekh,"
1 1st Krasnoarmeiskaya Str., St. Petersburg, 190005, Russia;
email: dsci@mail.ru. Translated from Inzhenerno-Fizicheskii 
Zhurnal, Vol. 80, No. 1, pp. 90-99, January-February, 2007.
Original article submitted July 4, 2005.