Pulse Detonation Engine Detonation Chamber Flow Field Analysis And Simulation,

Pulse detonation engine (PDE) is a new concept of propulsive engine which uses high temperature and pressure gas produced by intermittent or pulsant detonation wave to generate thrust. PDE has many desirable advantages, including high thermal dynamic cycle efficiency, low specific fuel consumption, high thrustlweight and specific impulse, simple configuration, and will become propulsive device of aviation and spaceflight aerocraft in 21st century. In the future, it is very important for national defence, aerial warfare and space traffic.At present, the technology of PDE is a hotspot in the domain of spaceflight pushing, everyone of the world powers have being studying it. Inland, the main institutions which have being studying the technology of PDE are Northwest Industry University, Nanjing Aviation Spaceflight University, China Science and Technology University and China Science Academe Dynam Graduate School. In this paper , the studying for the the technology of PDE is only elementary and groping.This paper firstly analyzed the basic theory, formed trait, spreaded mechanism and characteristics of the detonation wave and the working principle and the energetics circle process of the PDE. Then, founded a method of numerical simulation for the linear flowing of PDE on the basic of analyzed the linear flowing structure of the detonation wave in the detonation-room. With the characteristic method, numerical simulated the detonation wave linear flowing for several admixtures with fit chemic combination and numerical simulated the detonation wave linear flowing for the admixture of octane and air in the case of different chemic combinations. At length, analyzed the outcome of numerical simulations.