Extrapolation of turbocharger radial turbine engine characteristics

D.S. Minchev, U.L. Moshentsev, A.V. Nagirnyi

The method for extrapolation of turbocharger radial turbine characteristics is presented. Extrapolated characteristics are of the utmost significance for correct thermodynamic simulation of internal combustion engine cycle. The method is based on calculation of turbine characteristics according to gas-turbine theory. Suggested method is suitable for turbine characteristics extrapolation with satisfactory accuracy in spite of significant lack of input data.

Key words: turbocharger, turbine guide nozzle, turbine characteristics, engine cycle simulation.