MODELING OF ROTATING AND RECIRCULATION FLOWS ON THE BASIS OF A HYBRID TWO-PARAMETER k - MODEL
V. A. Fafurin UDC 532.542.4 A modified two-parameter model of turbulence for calculation of flows with a considerable flow curvature is considered. Account for the effects of anisotropy is based on correction of empirical coefficients, which enter into the equation of transfer of dissipation of turbulent kinetic energy, using the Richardson number. It is suggested to apply a correction not to the entire region of calculation, but to the portions where the Richardson number takes on certain values. Satisfactory agreement of calculation results with experimental data of different authors and a slight increase in computational costs allow one to draw the conclusion on the possibility of employing the suggested approaches in engineering practice. Kazan State Technological University; email: fva@kstu.ru. Translated from Inzhenerno-Fizicheskii Zhurnal, Vol. 75, No. 1, pp. 76-81, January-February, 2002. Original article submitted February 21, 2000; revision submitted March 27, 2001. JEPTER74920200216 JEPTER7492016