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A New Method for Analyzing Aero-Optical Effects with Transient Simulation.

Bo Yang¹, Zichen Fan¹, He Yu¹

¹School of Astronautics, Beihang University, Beijng 100191, China.

Sensors (Basel, Switzerland)

|April 3, 2021

Summary

This summary is machine-generated.

This study introduces a new method to analyze aero-optical effects by focusing on micro-scale structures and photon energy scattering. This approach reveals micro-scale turbulence significantly impacts wavefront distortion, improving optical sensor accuracy.

Keywords:

artificial vortex structure micro mechanism of aero-optical effects micro-scale density structure photon energy scattering scaling model of distorted wavefront star sensor of hypersonic vehicle

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Area of Science:

Optics and Photonics
Fluid Dynamics
Aerospace Engineering

Background:

Aero-optical effects, caused by airflow over high-speed aircraft, degrade optical sensor accuracy.
Existing research primarily addresses light refraction from large-scale turbulent structures.
The impact of micro-scale structures on aero-optical phenomena remains less understood.

Purpose of the Study:

To propose and validate a novel method for analyzing aero-optical effects.
To investigate the contribution of micro-scale structures to wavefront distortion.
To develop a simulation tool for understanding and mitigating aero-optical effects.

Main Methods:

Developed a method analyzing photon energy scattering from micro-scale structures.
Quantitatively analyzed the propagation equation for wavefront distortion.
Designed a transient simulator using scaling models and artificial vortex structures.

Main Results:

Micro-scale structures can contribute significantly more to wavefront distortion than large-scale structures.
Simulation results confirm that photon energy scattering from micro-scale structures accurately represents aero-optical phenomena.
Demonstrated the application of the simulator in optimizing star sensor parameters for hypersonic vehicles.

Conclusions:

Micro-scale structures are critical to understanding aero-optical effects.
The proposed analysis method and simulator offer a new perspective for studying aero-optical phenomena.
This research can lead to improved optical sensor performance on high-speed platforms.