ANALYSIS OF TURBULENCE MODELS AND INVESTIGATION OF THE STRUCTURE OF THE FLOW IN A HYDROCYCLONE
O. V. Matvienko UDC 621.928.37 A numerical investigation of the structure of the flow in a hydrocyclone has been carried out on the basis of Reynolds equations with the use of various models of turbulence: the k- model, the k- RNG (ReNormalization Group) model, the k- model corrected for the Richardson number Ri, and the k-model. It is shown that the distributions of the velocities and pressure in a hydrocyclone obtained with the k- Ri model, in which the influence of the rotation of the flow on the processes of generation/dissipation of turbulence and the anisotropy of the turbulent pulsations are taken into account, coincide most closely with the experimental ones. Tomsk State University of Architecture and Construction, 2 Solyanaya Sq., Tomsk, 634003, Russia; email: matvolegv@mail.ru. Translated from Inzhenerno-Fizicheskii Zhurnal, Vol. 77, No. 2, pp. 58-64, March-April, 2004. Original article submitted August 19, 2002; revision submitted August 4, 2003.