Single-Tube Two-Dimensional Evaluation of a Pulse Detonation Engine as a Ramjet Replacement

2004 ◽  
Author(s):  
Paul Harris ◽  
R. Ripley ◽  
Stephen Guzik
Keyword(s):  
Pulse Detonation Engine ◽  
Two Dimensional ◽  
Single Tube ◽  
Pulse Detonation ◽  
Detonation Engine

The Thermodynamic Performance of Ideal Single-Tube Air-Breathing Pulse Detonation Engine

2006 ◽  
Author(s):  
Hua Qiu ◽  
Cha Xiong ◽  
Chuan-Jun Yan
Keyword(s):  
Operation Mode ◽  
Equal Mass ◽  
Pulse Detonation Engine ◽  
Air Breathing ◽  
Single Tube ◽  
Pulse Detonation ◽  
Detonation Engine ◽  
Purge Gas ◽  
Operation Cycle ◽  
Factor Α

A new single-tube air-breathing pulse detonation engine (APDE) with bypass air duct is introduced. It is composed of inlet, valve, detonation chamber, bypass air duct and nozzle. Based on the analysis of the operation cycle of the APDE, airstreams flowing into the engine can be separated into three parts: one is flowing out from the engine through the bypass; one is exhausted from the nozzle as purge gas; and the else is mixed with fuel and is combusted. And the concept of cycle factor α that represents the ratio of air quantity for detonation combustion to incoming air quantity is defined to analyze the influence of the mass distribution on the performance of APDE. Although α has no effect on the cycle thermal efficiency of APDE, it influences the engine propulsive performance. When the APDE is full fuel filled and with the equivalent incoming air-flow and fuel-flow rate, the APDE will be superior to ramjet for 0∼5 Mach if α is larger than 0.8. When the APDE and ramjet work with equal mass fuel-air ratio of combustion, the specific fuel consumption of APDE is lower than that of ramjet for 0∼5 Mach. Also, if a is higher than 0.9, the specific thrust of APDE is higher than ramjet for 0∼5 Mach. Further, the operation mode of partial fuel filling can be used to enhance the performance, but it simultaneously decreases the total thermal cycle efficiency.

Experimental Investigation of a Pulse Detonation Engine with a Two-Dimensional Ejector

AIAA Journal ◽  
2005 ◽  
Vol 43 (2) ◽  
pp. 390-398 ◽  
Author(s):  
Daniel Allgood ◽  
Ephraim Gutmark ◽  
Adam Rasheed ◽  
Anthony J. Dean
Keyword(s):  
Experimental Investigation ◽  
Pulse Detonation Engine ◽  
Two Dimensional ◽  
Pulse Detonation ◽  
Detonation Engine

scholarly journals Study on Influence of Diameter on Detonation Acoustic Characteristics of Pulse Detonation Engine

2020 ◽  
Vol 0 (0) ◽  
Author(s):  
Gui-yang Xu ◽  
Chun-guang Wang ◽  
Yan-fang Zhu ◽  
Hong-yan Li ◽  
Lun-kun Gong ◽  
...  
Keyword(s):  
Acoustic Characteristic ◽  
Pulse Detonation Engine ◽  
Acoustic Characteristics ◽  
Experiment System ◽  
Pulse Detonation ◽  
Impact Noise ◽  
Maximum Duration ◽  
Detonation Engine ◽  
Set Up ◽  
Different Diameters

AbstractThe experiment system of pulse detonation engine is set up to investigate on influence of diameter on detonation acoustic characteristic. The research of detonation acoustic characteristic of pulse detonation engine for four different diameters in different angles is carried out. Results from the test show that as the PDE diameter increasing, there are increases in amplitudes of impact noise in all angles, and the growth rate of amplitude of impact noise in the 90° direction is generally greater than that in the 0° direction. The smaller PDE diameter is, the distance of most obvious directivity at 0° turning to most obvious directivity at 30° is shorter. When the distance is shorter, such as 200 mm, the duration of detonation acoustic is increasing with the increase of PDE diameter, however, when the distance is longer, such as 3000 mm, it is just the opposite. The maximum duration of detonation acoustic is appeared in 3000 mm under 30 mm PDE diameter which reaches to 1.44 ms.

An analytical model for the impulse of a single-cycle pulse detonation engine

2001 ◽  
Author(s):  
E. Wintenberger ◽  
J. Austin ◽  
M. Cooper ◽  
S. Jackson ◽  
J. Shepherd
Keyword(s):  
Analytical Model ◽  
Pulse Detonation Engine ◽  
Single Cycle ◽  
Pulse Detonation ◽  
Detonation Engine ◽  
Cycle Pulse
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