APPLICATION OF THE METHODS OF NUMERICAL MODELING TO EVALUATION OF THE TOTAL-PRESSURE LOSS IN GAS TURBINES
K. N. Volkov UDC 532.529:536.24 The total-pressure loss in gas turbines is evaluated. Reynolds-averaged Navier-Stokes equations are used for numerical calculations. The Spalart-Allmaras model, the k - model, and the two-layer model and their different modifications allowing for the rotation of the flow and the curvature of streamlines are used to close these equations. The role of different corrections to the turbulence models for the accuracy of calculated estimates is elucidated. University of Surrey, Guilford, GU2 7XH, United Kingdom. Translated from Inzhenerno-Fizicheskii Zhurnal, Vol. 80, No. 5, pp. 55-63, September-October, 2007. Original article submitted September 30, 2005.