Thermo-fluiddynamics of Continuous Operations of Pulse Detonation Engines

A PDE equipped with the rotary-valve was constructed. Fuel, which is hydrogen, was injected through a solenoid valve. Punched plates were used to promote mixing of fuel with air. In this paper, multi-cycle operations for 25Hz, 3.5 second were conducted. It was investigated that what kind of hole shape, number of fuel injection port, equivalence ratio, fill fraction were effective for the mixing and subsequent detonation process. As a result, equivalence ratio of about 1.1 is the optimal value for this equipment.１ 先端的研