Computations of turbulent non-premixed combustion and 3 modeling of flame wall interaction

Abstract

The aim of this work is to simulate the thermoelastic behavior of the wall of the combustion chamber 14 of the ALLISON-T56 turboprop under the influence of dynamic loads and turbulent diffusion flame. 15 This work is presented in two sections: The first step is to simulate and analyze the flame structure 16 and determine for given fuel flow and preheating temperature of fresh gas the behavior of the 17 thermodynamic parameters of combustion. The numerical approach is based on the resolution of basic 18 equations of turbulent combustion using Ansys-Fluent software where the turbulence model 19 viscous-SST k-omega is chosen. In the second step, the thermoelastic behavior of the wall of the 20 combustion chamber is simulated. The simulation results are presented and discussed in the last 21 section.The numerical results is validated by the experimental results realized on the turboprop engine 22 Allison-T56 test bench of Air-Algerie Company.