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Article

A New Method for Analyzing the Aero-Optical Effects of Hypersonic Vehicles Based on a Microscopic Mechanism

by
Bo Yang
1,
He Yu
1,*,
Chaofan Liu
1,
Xiang Wei
1,
Zichen Fan
2 and
Jun Miao
3
1
School of Astronautics, Beihang University, Beijing 100191, China
2
Beijing Institute of Control and Electronic Technology, Beijing 100038, China
3
Qian Xuesen Laboratory of Space Technology, Beijing 100094, China
*
Author to whom correspondence should be addressed.
Aerospace 2022, 9(10), 618; https://doi.org/10.3390/aerospace9100618
Submission received: 31 August 2022 / Revised: 1 October 2022 / Accepted: 17 October 2022 / Published: 18 October 2022
(This article belongs to the Special Issue Latest Advancements in Aeronautics and Astronautics: Celebrating the 70th Anniversary of Beihang University)
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Abstract

Aero-optical effects are the key factors that restrict the accuracy of the optical sensors of hypersonic vehicles, and the numerical simulation of aero-optical effects is a powerful tool with which to analyze aero-optical distortion. Most existing research focuses on the simulation analysis of refraction distortion based on the density field at the macro level via the ray-tracing method. In this paper, a method for analyzing aero-optical effects based on the interaction between photons and gas molecules is proposed and can explain the optical distortion and energy dissipation caused by aero-optical effects at the micro level. By establishing a transmission model of photons in turbulence, a simulation method of aero-optical effects based on a microscopic mechanism is designed and breaks through the limitations of a traditional macro method in energy analyses. The optical distortion parameters based on photonics are compared with the physical quantities of traditional aero-optical effects, which verifies the effectiveness of the micro analysis on the macro scale and provides a new idea for studying the microscopic mechanism of aero-optical effects.
Keywords: hypersonic vehicles; aero-optical effects; photonics; optical sensors; numerical simulation hypersonic vehicles; aero-optical effects; photonics; optical sensors; numerical simulation

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MDPI and ACS Style

Yang, B.; Yu, H.; Liu, C.; Wei, X.; Fan, Z.; Miao, J. A New Method for Analyzing the Aero-Optical Effects of Hypersonic Vehicles Based on a Microscopic Mechanism. Aerospace 2022, 9, 618. https://doi.org/10.3390/aerospace9100618

AMA Style

Yang B, Yu H, Liu C, Wei X, Fan Z, Miao J. A New Method for Analyzing the Aero-Optical Effects of Hypersonic Vehicles Based on a Microscopic Mechanism. Aerospace. 2022; 9(10):618. https://doi.org/10.3390/aerospace9100618

Chicago/Turabian Style

Yang, Bo, He Yu, Chaofan Liu, Xiang Wei, Zichen Fan, and Jun Miao. 2022. "A New Method for Analyzing the Aero-Optical Effects of Hypersonic Vehicles Based on a Microscopic Mechanism" Aerospace 9, no. 10: 618. https://doi.org/10.3390/aerospace9100618

APA Style

Yang, B., Yu, H., Liu, C., Wei, X., Fan, Z., & Miao, J. (2022). A New Method for Analyzing the Aero-Optical Effects of Hypersonic Vehicles Based on a Microscopic Mechanism. Aerospace, 9(10), 618. https://doi.org/10.3390/aerospace9100618

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