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Parametric Design Method and Performance Analysis of Double S-Shaped Nozzles
Joint Authors
Xiao-ming, Tan
Jing-zhou, Zhang
Wu, Yanhua
Shan, Yong
Zhou, Xiaoming
Source
International Journal of Aerospace Engineering
Issue
Vol. 2019, Issue 2019 (31 Dec. 2019), pp.1-24, 24 p.
Publisher
Hindawi Publishing Corporation
Publication Date
2019-05-12
Country of Publication
Egypt
No. of Pages
24
Abstract EN
A parametric design method, which was based on super-elliptical transition and self-adaption infrared radiation shield for the double S-shaped nozzle, was introduced.
The complete shielding of high-temperature components in the S-shaped nozzle was realized.
Model experiments and numerical simulations were performed to investigate the effects of offset ratio S/D, the ratio of length to diameter L/D, and the aspect ratio W/H on the aerodynamics and infrared radiation.
The results showed that the total pressure recovery and thrust coefficients were improved initially, but dropped rapidly with the increase in offset ratios with the range of investigated parameters.
There existed an optimal offset ratio for the aerodynamic performances.
Considering the weight penalty, the length of nozzles should only be increased properly to achieve better aerodynamic performances.
Both friction and viscous losses caused by large streamwise vortices dominated the aerodynamic performances of nozzles.
The nozzle with the aspect ratio of W/H=5.0 was recommended for achieving optimal aerodynamics.
The increase in aspect and offset ratios could effectively suppress plume radiation, which was, however, not sensitive to overall radiation.
Compared to circular nozzles, double S-shaped nozzles reduced overall infrared radiation by over 50%, which proves significant stealth ability.
A balance between aerodynamic performances and infrared radiation suppression could be reached for double S-shaped nozzles.
American Psychological Association (APA)
Shan, Yong& Zhou, Xiaoming& Xiao-ming, Tan& Jing-zhou, Zhang& Wu, Yanhua. 2019. Parametric Design Method and Performance Analysis of Double S-Shaped Nozzles. International Journal of Aerospace Engineering،Vol. 2019, no. 2019, pp.1-24.
https://search.emarefa.net/detail/BIM-1156504
Modern Language Association (MLA)
Shan, Yong…[et al.]. Parametric Design Method and Performance Analysis of Double S-Shaped Nozzles. International Journal of Aerospace Engineering No. 2019 (2019), pp.1-24.
https://search.emarefa.net/detail/BIM-1156504
American Medical Association (AMA)
Shan, Yong& Zhou, Xiaoming& Xiao-ming, Tan& Jing-zhou, Zhang& Wu, Yanhua. Parametric Design Method and Performance Analysis of Double S-Shaped Nozzles. International Journal of Aerospace Engineering. 2019. Vol. 2019, no. 2019, pp.1-24.
https://search.emarefa.net/detail/BIM-1156504
Data Type
Journal Articles
Language
English
Notes
Includes bibliographical references
Record ID
BIM-1156504