APPLICATION OF SCIENTIFIC KNOWLEDGE TO DEVELOPMENT OF AERONAUTICAL COMBUSTORS

Application of scientific knowledge to the development of aeronautical combustion chambers. The aerothermochemistry in the combustion chambe rs of jet engines (main chamber and reheat) brings into play many inte rdependent physical phenomena with a very wide range of characteristic times. It is appropriate, among other things, to represent the intern al aerodynamics correctly so as to minimize the losses of pressure hea d, and to predict the temperature profiles at the exit of the main cha mber correctly, to take account of the chemistry in order to understan d the phenomena of stability, of ignition and of production of polluta nts, to represent the diphasic aspects related to atomization and evap oration of the fuel. In this paper we propose an illustration of the a pplication of numerical methods to the modeling of these various pheno mena on complex industrial geometries of aerodynamic chambers, and we mention the advanced metrology techniques which are vital to the valid ation and to the development of the models and to progress in phenomen ological awareness.