Numerical Investigation on the Effects of Nozzle Geometry on the Performance of a Pulse Detonation Engine

2004 ◽  
Author(s):  
M. Ruhul Amin ◽  
Hasan Z. Rouf ◽  
Jean-Luc Cambier
Keyword(s):  
Numerical Investigation ◽  
Nozzle Geometry ◽  
Pulse Detonation Engine ◽  
Pulse Detonation ◽  
Detonation Engine

scholarly journals Influence of Nozzle Type, Divergence Angle and Area Ratio on Impulse of Pulse Detonation Engine

2020 ◽  
Vol 12 (2) ◽  
pp. 35-45
Author(s):  
Sanjeev Kumar DHAMA ◽  
T. K. JINDAL ◽  
S. K. MANGAL
Keyword(s):  
Area Ratio ◽  
Divergence Angle ◽  
Nozzle Geometry ◽  
Oxygen Mixture ◽  
Pulse Detonation Engine ◽  
Pulse Detonation ◽  
Detonation Engine ◽  
Shaped Nozzle ◽  
Divergent Angle ◽  
Thrust Stand

The influence of nozzle geometry on the impulse produced by the single cycle Pulse detonation engine (PDE) was experimentally investigated. For each experiment the nozzles were attached at the end of the engine. The impulse produced by the pulse detonation engine was calculated from the measured thrust. The thrust measurement was done by sliding the engine on the central bar of the thrust stand. The main structure of the basic PDE has a detonation tube with one terminal closed, a Schelkin spiral used as deflagration to detonation device, and a thrust stand to support the structure. Stoichiometric acetylene and oxygen mixture were used as detonation mixture. Various nozzles with a range of divergent angle and area ratios were tested. The calculations of the impulse were made from the thrust pulse for the duration it lasted. The effect of the type of nozzle, divergent angle and area ratio were observed. The bell shaped nozzle with large angle of divergence produced maximum specific impulse of 80 Sec with 20° divergence angle and area ratio of 6.942; maximum impulse was produced by the bell shaped nozzle with a small area ratio of 2.969 and 10° divergence angle. The maximum total impulse obtained was 1200 N-sec.

Numerical investigation of the liquid-fueled pulse detonation engine for different operating conditions

Shock Waves ◽  
2019 ◽  
Vol 29 (8) ◽  
pp. 1205-1225 ◽  
Author(s):  
V. B. Nguyen ◽  
C. J. Teo ◽  
P.-H. Chang ◽  
J. M. Li ◽  
B. C. Khoo
Keyword(s):  
Numerical Investigation ◽  
Operating Conditions ◽  
Pulse Detonation Engine ◽  
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.

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