Study on correction method of aero-optical effects caused by supersonic mixing layer based on flow control

Guo Guangming

doi:10.3788/IRLA201948.0809001

The periodic controlled supersonic mixing layer was simulated using large eddy simulation(LES) method. Features of vortices in this flow field was revealed clearly, and the ray tracing method was employed to calculate wave front distortion of a beam passing through the controlled supersonic mixing layer. A correction method for wave front distortion was proposed based on the analysis of dynamical characteristic of vortices in the controlled flow field, and it was tested by a supersonic mixing layer periodic controlled with different frequencies. The results show that the presented correction method can reduce the amplitude of wave front distortion to 50 percent or more, and shape of the controlled vortex in mixing layer is the key factor dominating the correction effect.

Study on correction method of aero-optical effects caused by supersonic mixing layer based on flow control

1. College of Mechanical Engineering,Yangzhou University,Yangzhou 225127,China

Received Date: 2019-03-11

Rev Recd Date: 2019-04-21

Publish Date: 2019-08-25

Key words:

Abstract: The periodic controlled supersonic mixing layer was simulated using large eddy simulation(LES) method. Features of vortices in this flow field was revealed clearly, and the ray tracing method was employed to calculate wave front distortion of a beam passing through the controlled supersonic mixing layer. A correction method for wave front distortion was proposed based on the analysis of dynamical characteristic of vortices in the controlled flow field, and it was tested by a supersonic mixing layer periodic controlled with different frequencies. The results show that the presented correction method can reduce the amplitude of wave front distortion to 50 percent or more, and shape of the controlled vortex in mixing layer is the key factor dominating the correction effect.

HTML

Reference (15)

[1]	Yin Xingliang. Principle of Aero-optics[M]. Beijing:China Astronautics Press, 2003:2. (in Chinese)
[2]	Wang Naixiang, Xu Yulei, Shi Lei, et al. Analysis of the impact of windward and angle of attack to the flow field around the optical window on high Mach condition[J]. Infrared and Laser Engineering, 2015, 44(4):1267-1272. (in Chinese)
[3]	Ding Haolin, Yi Shihe, Wu Yuyang, et al. Investigation on correction method of aero-optical transmission effects imaging deviation based on BOS technique[J]. Infrared and Laser Engineering, 2018, 47(4):0418003. (in Chinese)
[4]	Jumper E J, Hugo R J. Quantification of aero-optical phase distortion using the small-aperture beam technique[J]. AIAA Journal, 1995, 33(11):2151-2157.
[5]	Catrakis H J, Aguirre R C. New interfacial fluid thickness approach in aero-optics with applications to compressible turbulence[J]. AIAA Journal, 2004, 42(10):1973-1981.
[6]	Dimotaksi P, Catrakis H, Fourguette D. Flow structure and optical beam propagation in high-reynolds-number gas-phase shear layers and jets[J]. Journal of Fluid Mechanics, 2001, 433:105-143.
[7]	Gan Caijun, Li Lang, Ma Handong, et al. Theoretical and experimental investigations on aero-optical effect of the compressible mixing layer[J]. Acta Physica Sinica, 2014, 63:054703. (in Chinese)
[8]	Guo G M, Liu H, Zhang B. Development of a temporal evolution model for aero-optical effects caused by vortices in the supersonic mixing layer[J]. Applied Optics, 2016, 55(10):2708-2717.
[9]	Visbal M R, Rizzeta D P. Effect of flow excitation on aero-optical aberration[C]//44th AIAA Aerospace Science Meeting and Exhibit, 2008:1074.
[10]	Rennie R M, Siegenthaler J P, Jumper E J. Forcing of a two-dimensional, weakly-compressible subsonic free shear layer[C]//44th AIAA Aerospace Science Meeting and Exhibit, 2006:561.
[11]	Rennie R M, Duffin D A, Jumper E J. Characterization of a Forced two-dimensional, weakly-compressible subsonic free shear layer[C]//38th AIAA Aerospace Science Meeting and Exhibit, 2007:4007.
[12]	Freeman A P, Catrakis H J. Direct reduction of aero-optical aberrations by large structure suppression control in turbulence[J]. AIAA Journal, 2008, 46(10):2582-2590.
[13]	Guo Guangming, Liu Hong, Zhang Bin, et al. Characteristics of convective speeds of vortex structures in mixing layer[J]. Acta Physica Sinica, 2016, 65(7):074702. (in Chinese)
[14]	Guo G M, Liu H, Correcting aero-optical wavefront aberration of the supersonic mixing layer based on periodic pulse forcing[J]. Applied Optics, 2017, 56(16):4613-4621.
[15]	Ravindraan S S. Reduced-order adaptive controllers for fluids using proper orthogonal decomposition[C]//9th AIAA Aerospace Sciences Meeting and Exhibit, 2001:0925.

Study on correction method of aero-optical effects caused by supersonic mixing layer based on flow control

doi: 10.3788/IRLA201948.0809001

Abstract

References

Proportional views

通讯作者: 陈斌, bchen63@163.com

Article Metrics

Related

Proportional views