Using computational gas dynamics methods for the simulation of multicomponent gas flow, combustion and heat exchange in a gas turbine combustion chamber

The problem of mathematical simulation of physical and chemical processes in a gas turbine combustion chamber is considered. The results of numerical simulation of a gas mixture turbulent flow and combustion in a methane-fuelled combustor are presented. The simulation of multicomponent turbulent gas flow processes was performed using averaged Navier-Stokes equations, k − ε turbulence model. Thin flame front model and Zeldovitch mechanism are used to describe the combustion process. Using these models made it possible to assess the NO emission level at the combustor outlet.