Experimental Research on Induction Systems of an Air-breathing Valveless Pulse Detonation Engine
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Zhi-wu Wang
,
Xinggu Chen
Abstract
An air-breathing valveless PDE model was designed and manufactured, which was made up of subsonic inlet, mixing chamber, ignition chamber, detonation chamber. The total pressure recovery coefficient, flux coefficient and intake resistance with six different induction systems were measured by a semi free subsonic flow field. The proof-of-principle experiments of PDE model with different induction systems were all successfully carried out, by using liquid gasoline-air mixture with low-energy system (total stored energy less than 50 mJ). The measured detonation wave pressure ratio was very close to that of C-J detonation. The air-breathing PDE model was easy to initiate and worked in good condition. The deflagration to detonation transition (DDT) and operation frequency effect on pressure traces were also investigated by experiments. The results indicated the oscillation of pressure peak at P6 enhanced with the operation frequency increased. DDT accomplished before P6 and the DDT distance was about 0.9 m (from the ignitor).
©2012 by Walter de Gruyter Berlin Boston
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Articles in the same Issue
- Masthead
- Effect of Tab Geometry on the Development of a Jet Issuing from a Rectangular Nozzle
- Reliability Analysis of Aircraft Servo-Actuation Systems Using Evidential Networks
- Improvements in Off Design Aeroengine Performance Prediction Using Analytic Compressor Map Interpolation
- A Practical Method for Determining the Corten-Dolan Exponent and Its Application to Fatigue Life Prediction
- Effect of Soot Particles on Supersonic Rocket Plume Properties
- Evidential Networks for Fault Tree Analysis with Imprecise Knowledge
- Experimental Research on Induction Systems of an Air-breathing Valveless Pulse Detonation Engine
