NUMERICAL INVESTIGATION OF THE HYDRODYNAMICS OF A TWISTED FLOW IN A VORTEX CHAMBER BASED ON THE TWO-PARAMETER MODEL OF TURBULENCE
I. L. Artemov and A. V. Shvab UDC 532.517.4 An approach based on solution of complete averaged Navier-Stokes equations in vortex chambers using a low-Reynolds k - model of turbulence is considered. The problem is solved in the variables vortex, stream function, and circular component of the velocity. The method of oriented pseudoconvection is used for problems of the dynamics of twisted flows. The method allows one to retain second order of accuracy of convective terms and provide stability of the solution for rather high Reynolds numbers. The problem of formulation of boundary conditions of second order of accuracy for vorticity on a solid wall at angular points is considered. An analysis of the results obtained shows that numerical calculations within the framework of the considered model of turbulence agree with experimental data rather well. Tomsk State University, Tomsk, Russia; email: impuls@post.tomica.ru, root@ftf.tsu.tomsk.ru. Translated from Inzhenerno-Fizicheskii Zhurnal, Vol. 74, No. 3, pp. 117-120, May-June, 2001. Original article submitted March 27, 2000. JEPTER74920200116 JEPTER7492016