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Proceedings Paper

The influence of the inflow speed on air-breathing supersonic laser propulsion
Author(s): Lei Shi; Hao Chen; Li-hua Ma; Yong-an Chen; Zhi-yan Xu; Hua Hong
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Paper Abstract

A model of coupled dynamics for supersonic airbreathing propulsion is developed to simulate the development process of the thruster’s flowfield. The influence of the inflow speed, from 1 to 4 Mach, on the laser propulsion performance is investigated numerically. The results indicate that the inflow speed has a marked effect on the propulsion efficiency. Under the same laser parameters, the larger inflow speed leads to lower thruster and impulse coupling coefficient. By analyzing the phenomena in the complex unsteady flowfield, we found that the bow shock occurring out of the surface of the thruster due to supersonic inflow is the real cause of the performance worsening and air drag reduction becomes a very important task at supersonic laser propulsion.

Paper Details

Date Published: 17 September 2013
PDF: 9 pages
Proc. SPIE 8904, International Symposium on Photoelectronic Detection and Imaging 2013: High Power Lasers and Applications, 89040N (17 September 2013); doi: 10.1117/12.2032968
Show Author Affiliations
Lei Shi, Air Force Engineering Univ. (China)
Hao Chen, Air Force Engineering Univ. (China)
Li-hua Ma, Air Force Engineering Univ. (China)
Yong-an Chen, Air Force Engineering Univ. (China)
Zhi-yan Xu, Air Force Engineering Univ. (China)
Hua Hong, Air Force Engineering Univ. (China)


Published in SPIE Proceedings Vol. 8904:
International Symposium on Photoelectronic Detection and Imaging 2013: High Power Lasers and Applications
Andreas Tünnermann; Zejin Liu; Pu Wang; Chun Tang, Editor(s)

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