Modelling and simulation of turboprop engine behaviour

Based on dynamic and thermodynamic equations and experimentally given characteristics of each component, a computer-aided system for modelling and simulation of turbine engine behaviour is developed. The steady-state regimes of the engine are described as a system of nonlinear algebraic equations and inequalities, which are treated as constraints in certain nonlinear mathematical programming problem to enable us optimal selection of design parameters and operating conditions. The transition regime simulation is performed in analogical way as a solution of a system of nonlinear algebraic-differential equations. The implemented decision support system for modelling of both the steady-state and transition regimes features user-friendly graphic environment. It serves as an efficient design tool for analysis, simulation and adjustment of real engines during final stage of their development.