Ignition Study on a Rotary-valved Air-breathing Pulse Detonation Engine
-
Yuwen Wu
,
Yujia Shen
Abstract
In the present study, the ignition effect on detonation initiation was investigated in the air-breathing pulse detonation engine. Two kinds of fuel injection and ignition methods were applied. For one method, fuel and air was pre-mixed outside the PDE and then injected into the detonation tube. The droplet sizes of mixtures were measured. An annular cavity was used as the ignition section. For the other method, fuel-air mixtures were mixed inside the PDE, and a pre-combustor was utilized as the ignition source. At firing frequency of 20 Hz, transition to detonation was obtained. Experimental results indicated that the ignition position and initial flame acceleration had important effects on the deflagration-to-detonation transition.
Nomenclature
Fuel injection delay time
Fuel injection duration
Ignition time
- D
Inner diameter of detonation tube
- d
Inner diameter of the orifice plate
- Le
length of the DDT enhancement device
- BR
Blockage ratio of detonation tube
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Articles in the same Issue
- Frontmatter
- Study of Decay Characteristics of Hexagonal and Square Supersonic Jet
- Investigation on the Film Cooling Performance of Diffuser Shaped Holes with Different Inclination Angles
- Model-based Acceleration Control of Turbofan Engines with a Hammerstein-Wiener Representation
- Fatigue Life Prediction of Low Pressure Turbine Shaft of Turbojet Engine
- Influence of Geometry on Rotordynamic Coefficients of Brush Seal
- Numerical Investigation of Transient Flow in a Prototype Centrifugal Pump during Startup Period
- Thrust Performance Evaluation of a Turbofan Engine Based on Exergetic Approach and Thrust Management in Aircraft
- Real-time Simulation of Turboprop Engine Control System
- Ignition Study on a Rotary-valved Air-breathing Pulse Detonation Engine
Articles in the same Issue
- Frontmatter
- Study of Decay Characteristics of Hexagonal and Square Supersonic Jet
- Investigation on the Film Cooling Performance of Diffuser Shaped Holes with Different Inclination Angles
- Model-based Acceleration Control of Turbofan Engines with a Hammerstein-Wiener Representation
- Fatigue Life Prediction of Low Pressure Turbine Shaft of Turbojet Engine
- Influence of Geometry on Rotordynamic Coefficients of Brush Seal
- Numerical Investigation of Transient Flow in a Prototype Centrifugal Pump during Startup Period
- Thrust Performance Evaluation of a Turbofan Engine Based on Exergetic Approach and Thrust Management in Aircraft
- Real-time Simulation of Turboprop Engine Control System
- Ignition Study on a Rotary-valved Air-breathing Pulse Detonation Engine
