Effect of projection directions on the aero-optical effect around conformal turrets

Daju Lu; Hang Dong; Kai Zhang

doi:10.1117/12.2563875

17 April 2020 Effect of projection directions on the aero-optical effect around conformal turrets

Daju Lu, Hang Dong, Kai Zhang

Proceedings Volume 11455, Sixth Symposium on Novel Optoelectronic Detection Technology and Applications; 114552J (2020) https://doi.org/10.1117/12.2563875
Event: Sixth Symposium on Novel Photoelectronic Detection Technology and Application, 2019, Beijing, China

Abstract

This study simulated the aero-optical effect of laser beams with different projection directions around conformal turrets, for both conditions that turret in the aircraft’s nose and on the aircraft’s back. The aero-optical effect is expressed as the beam quality factor and tilt angle, and the variation of aero-optical effects reflects the variation of the flow field. For the condition that turret on the aircraft’s back, and for the forward directions, the absolute value and fluctuation value of the wavefront distortion caused by the aero-optical effect are relatively small. The wavefront distortion statistics and fluctuation values caused by aero-optical effect appear to be minimized at a projection direction of zenith 40° in the forward direction, and the increase of projection radius can result in fast increasing of the mean flow effect while maintaining the turbulent effect almost constant.

Citation Download Citation

Daju Lu, Hang Dong, and Kai Zhang "Effect of projection directions on the aero-optical effect around conformal turrets", Proc. SPIE 11455, Sixth Symposium on Novel Optoelectronic Detection Technology and Applications, 114552J (17 April 2020); https://doi.org/10.1117/12.2563875

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KEYWORDS

Wavefronts

Wavefront distortions

Nose

Turbulence

Adaptive optics

Laser applications

Airborne laser technology

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