TY - JOUR
T1 - Experimental visualization of the structure of rotating detonation waves in a disk-shaped combustor
AU - Nakagami, Soma
AU - Matsuoka, Ken
AU - Kasahara, Jiro
AU - Kumazawa, Yoshiki
AU - Fujii, Jumpei
AU - Matsuo, Akiko
AU - Funaki, Ikkoh
N1 - Funding Information:
This study was subsidized by a Grant-in-Aid for Scientific Research (A), number 24246137. The authors would like to thank the support from the Institute of Space and Astronautical Science/Japan Aerospace Exploration Agency. The authors are thankful for valuable discussion with and support from David Hopper of the U.S. Air Force Research Laboratory.
Publisher Copyright:
Copyright © 2016 by Nagoya University.
PY - 2017
Y1 - 2017
N2 - The rotating detonation engine is a propulsion system that obtains thrust using continuously existing detonation waves. A rotating detonation combustor usually has an annular shape that allows detonation waves to propagate in the circumferential direction. In this study, we used a disk-shaped rotating detonation combustor with a combustion chamber with flat-plane glass walls toobserve the structure of the phenomena. Self-luminescence, shadowgraphs, and schlieren visualization experiments were performed and compared. Results revealed that detonation waves were propagating in a mixture layer of three gases, fuel, oxidizer, and burned gas at 1600 to 900 m/s; Chapman-Jouguet velocity was 2376 m/s. Waves maintained a three-dimensional complicated wave shape in the disk-shaped combustion chamber with parallel-jet injectors.
AB - The rotating detonation engine is a propulsion system that obtains thrust using continuously existing detonation waves. A rotating detonation combustor usually has an annular shape that allows detonation waves to propagate in the circumferential direction. In this study, we used a disk-shaped rotating detonation combustor with a combustion chamber with flat-plane glass walls toobserve the structure of the phenomena. Self-luminescence, shadowgraphs, and schlieren visualization experiments were performed and compared. Results revealed that detonation waves were propagating in a mixture layer of three gases, fuel, oxidizer, and burned gas at 1600 to 900 m/s; Chapman-Jouguet velocity was 2376 m/s. Waves maintained a three-dimensional complicated wave shape in the disk-shaped combustion chamber with parallel-jet injectors.
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U2 - 10.2514/1.B36084
DO - 10.2514/1.B36084
M3 - Article
AN - SCOPUS:85012160038
SN - 0748-4658
VL - 33
SP - 80
EP - 88
JO - Journal of Propulsion and Power
JF - Journal of Propulsion and Power
IS - 1
ER -