Several advanced combustion models are incorporated in CharLES to accurately simulate premixed, non-premixed and partially premixed flames. Direct prediction of pollutants such as CO, CO2 and NOx is also possible, meaning that emissions can be easily monitored and tracked. In more detail, Cascade Technologies has considerable experience in flame stability studies applied to afterburners in military jet engines. The afterburner, which is mounted on the aircraft jet engine exit, is specifically designed to increase thrust from the gas turbine jet engine by burning additional fuel with the hot engine exhausts. The real engineering challenge for afterburners is to keep flame stability over a wide range of operating conditions. Flame stability studies using CharLES were performed under US government SBIRs phase I and II, and numerical results were validated against experiments at the US Air Force Research Laboratory.
