A modified mathematical model of chemically nonequilibrium heterogeneous flows in nozzles is proposed. The reaction mechanism reduction procedure includes the DRGEP method and the adaptive threshold engagement method using the concepts of “large molecules” and aggregated inert substance. The proposed procedure was used to calculate the flow of the nitrocellulose fuel combustion products. A significant reduction in the initial reaction mechanism was achieved with an acceptable accuracy in predicting the specific impulse and the composition of the working fluid.
Chemically Nonequilibrium Flows of Nitrocellulose Fuel Combustion Products in Aircraft Engine Nozzles
Russ. Aeronaut.
Russian Aeronautics ; 64 , 3 ; 503-510
2021-07-01
8 pages
Article (Journal)
Electronic Resource
English