Experimental Study on Propagation Characteristics of Kerosene/Air RDE with Different Diameters

A series of experimental tests were carried out in order to study the propagation characteristics of a liquid kerosene rotating detonation engine (RDE) with different diameters. Distinguished characteristics of spatial and temporal instability were found in the large-scale RDE due to the uneven circ...

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Main Authors: Shida Xu, Feilong Song, Jianping Zhou, Xingkui Yang, Peng Cheng
Format: Article
Language:English
Published: MDPI AG 2022-06-01
Series:Energies
Subjects:
Online Access:https://www.mdpi.com/1996-1073/15/12/4442
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author Shida Xu
Feilong Song
Jianping Zhou
Xingkui Yang
Peng Cheng
author_facet Shida Xu
Feilong Song
Jianping Zhou
Xingkui Yang
Peng Cheng
author_sort Shida Xu
collection DOAJ
description A series of experimental tests were carried out in order to study the propagation characteristics of a liquid kerosene rotating detonation engine (RDE) with different diameters. Distinguished characteristics of spatial and temporal instability were found in the large-scale RDE due to the uneven circumferential distribution of kerosene supply pressure. As for the two counter-waves detonation system, the 500 mm-diameter RDE maintains a higher detonation wave velocity due to its longer injection recovery time. However, the 220 mm-diameter RDE can obtain a larger equivalence ratio operation range, higher specific thrust, and higher specific impulse. In addition, compared with the deflagration combustion, the detonation combustion has higher chamber pressure and thrust under the same operational conditions.
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spelling doaj.art-1726fab22b35497d965090ffdfaa7b9f2023-11-23T16:31:15ZengMDPI AGEnergies1996-10732022-06-011512444210.3390/en15124442Experimental Study on Propagation Characteristics of Kerosene/Air RDE with Different DiametersShida Xu0Feilong Song1Jianping Zhou2Xingkui Yang3Peng Cheng4Science and Technology on Plasma Dynamics Laboratory, Air Force Engineering University, Xi’an 710038, ChinaScience and Technology on Plasma Dynamics Laboratory, Air Force Engineering University, Xi’an 710038, ChinaScience and Technology on Plasma Dynamics Laboratory, Air Force Engineering University, Xi’an 710038, ChinaScience and Technology on Plasma Dynamics Laboratory, Air Force Engineering University, Xi’an 710038, ChinaScience and Technology on Plasma Dynamics Laboratory, Air Force Engineering University, Xi’an 710038, ChinaA series of experimental tests were carried out in order to study the propagation characteristics of a liquid kerosene rotating detonation engine (RDE) with different diameters. Distinguished characteristics of spatial and temporal instability were found in the large-scale RDE due to the uneven circumferential distribution of kerosene supply pressure. As for the two counter-waves detonation system, the 500 mm-diameter RDE maintains a higher detonation wave velocity due to its longer injection recovery time. However, the 220 mm-diameter RDE can obtain a larger equivalence ratio operation range, higher specific thrust, and higher specific impulse. In addition, compared with the deflagration combustion, the detonation combustion has higher chamber pressure and thrust under the same operational conditions.https://www.mdpi.com/1996-1073/15/12/4442rotating detonation waveliquid kerosenedetonation modesize effect
spellingShingle Shida Xu
Feilong Song
Jianping Zhou
Xingkui Yang
Peng Cheng
Experimental Study on Propagation Characteristics of Kerosene/Air RDE with Different Diameters
Energies
rotating detonation wave
liquid kerosene
detonation mode
size effect
title Experimental Study on Propagation Characteristics of Kerosene/Air RDE with Different Diameters
title_full Experimental Study on Propagation Characteristics of Kerosene/Air RDE with Different Diameters
title_fullStr Experimental Study on Propagation Characteristics of Kerosene/Air RDE with Different Diameters
title_full_unstemmed Experimental Study on Propagation Characteristics of Kerosene/Air RDE with Different Diameters
title_short Experimental Study on Propagation Characteristics of Kerosene/Air RDE with Different Diameters
title_sort experimental study on propagation characteristics of kerosene air rde with different diameters
topic rotating detonation wave
liquid kerosene
detonation mode
size effect
url https://www.mdpi.com/1996-1073/15/12/4442
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AT jianpingzhou experimentalstudyonpropagationcharacteristicsofkeroseneairrdewithdifferentdiameters
AT xingkuiyang experimentalstudyonpropagationcharacteristicsofkeroseneairrdewithdifferentdiameters
AT pengcheng experimentalstudyonpropagationcharacteristicsofkeroseneairrdewithdifferentdiameters