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Analysis of Rotating Detonation Wave Engine

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Title Analysis of Rotating Detonation Wave Engine
 
Creator V, Ramanujachari
P, Amrutha Preethi
 
Subject CJ detonation
Deflection angle
Rotating Detonation Wave Engine (RDE)
Shock polar
Shock angle
Sonic state
Specific thrust
Specific impulse
 
Description 274-282
Rotating Detonation Wave Engine (RDE) due to its promising potential as a propulsive and power generation device has
been researched worldwide based on both numerical and experimental investigations. The thermodynamic analysis has been
of importance prior to the commencement of the experimental investigations as the set conditions could be established with
ease. The flow field behind the detonation wave has been quite complex due to oblique shock wave, contact surface between
combustion products of detonation wave and shocked combustion products and the expansion waves. The simultaneous
establishment of the flow parameters has been of importance to the success of understanding the RDE. The enthalpy values
at different states have provided the energy conversion to kinetic energy as a result of expansion of the product gases in the
RDE flow field. Stability of the oblique shock wave attached to the detonation wave has been crucial for obtaining optimum
performance of RDE. The intersection of oblique shock polar and the Prandtl – Meyer expansion characteristics has given
the conditions under which the oblique shock remains attached to the detonation wave and be a part of the triple point.
Under all the set conditions, the stability of the oblique shock has been ascertained. In the present analysis, the specific
thrust for the present configuration using H2–air is 1374 Ns/kg compared to a value of 1347 Ns/kg reported in the literature
for a stoichiometric composition. The marginal difference has been due to the different input conditions ahead of the
detonation wave. This has given credence to the results of the analytical work based on gas dynamic and thermodynamic
relationships. The practical implications of this analytical work have been brought out.
 
Date 2023-06-22T10:05:42Z
2023-06-22T10:05:42Z
2023-06
 
Type Article
 
Identifier 0971-4588 (Print); 0975-1017 (Online)
http://nopr.niscpr.res.in/handle/123456789/62055
https://doi.org/10.56042/ijems.v30i2.1461
 
Language en
 
Publisher NIScPR-CSIR, India
 
Source IJEMS Vol.30(2) [April 2023]