Equivalent lenses of supersonic seeker's outflow refractive index field obtained by simulation and experiment

Qun Wei; Hongguang Jia; Ming Xuan

doi:10.1117/12.806586

27 January 2009 Equivalent lenses of supersonic seeker's outflow refractive index field obtained by simulation and experiment

Qun Wei, Hongguang Jia, Ming Xuan

Author Affiliations +

Proceedings Volume 7156, 2008 International Conference on Optical Instruments and Technology: Optical Systems and Optoelectronic Instruments; 71561Q (2009) https://doi.org/10.1117/12.806586
Event: International Conference of Optical Instrument and Technology, 2008, Beijing, China

Abstract

In order to decrease the aerodynamic drag of supersonic image guide missile and design a non-spherical dome, the outflow field of the missile's dome is simulated using FLUENT. Based on the simulated results, the accurate density field of the outflow field at all kinds of flight conditions is obtained, and then the refractive index field of the outflow field is gotten according to the Gladstone-Dale law. The results show that the shock wave induces the heterogeneity of the refractive index field and the turbulent causes distortion. The outflow field is divided into several zones which are taken as equivalent lenses for aberration analysis.

Citation Download Citation

Qun Wei, Hongguang Jia, and Ming Xuan "Equivalent lenses of supersonic seeker's outflow refractive index field obtained by simulation and experiment", Proc. SPIE 7156, 2008 International Conference on Optical Instruments and Technology: Optical Systems and Optoelectronic Instruments, 71561Q (27 January 2009); https://doi.org/10.1117/12.806586

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