The book describes the physical foundations of fuel combustion processes in air flows and methods for calculating combustion chambers of air-jet engines. Thermodynamic and aerodynamic characteristics of combustion chambers, processes of fuel spraying and mixture formation, ignition and combustion of gas mixtures in laminar and turbulent flows, methods of flame stabilization, vibration combustion, combustion in the wake of a poorly flowed body, processes of heat exchange and heat protection of chambers are considered.