Experimental investigation on factors influencing detonative range of air-liquid fuel and gas temperature in pulsed detonation combustion chamber

摘要

The experimental investigation of factors influencing deto-native range of air-liquid fuel mixture and internal flow gas temperature in pulsed detonation combustion chamber is made in this paper. This experimental investigation is carried out on a test model of pulsed detonation combustion chamber that adopts gasoline/air mixture, and the test model is developed by ourselves. The investigations indicate that the amount of fuel feed has considerable influence on the detonative range of air-liquid fuel mixture, and that ignition frequency and excess-air coefficient of mixture have very large influence on average gas temperature behind detonation waves in pulsed detonation com-bustion chamber and their axial distribution.