COMPUTATIONS OF TURBULENT NON-PREMIXED COMBUSTION AND 3MODELING OF FLAME WALL INTERACTION

Abstract

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