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- Title
A New Method for Analyzing the Aero-Optical Effects of Hypersonic Vehicles Based on a Microscopic Mechanism.
- Authors
Yang, Bo; Yu, He; Liu, Chaofan; Wei, Xiang; Fan, Zichen; Miao, Jun
- 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.
- Subjects
HYPERSONIC planes; OPTICAL distortion; OPTICAL sensors; ENERGY dissipation; PHYSICAL constants; COMPUTER simulation
- Publication
Aerospace (MDPI Publishing), 2022, Vol 9, Issue 10, pN.PAG
- ISSN
2226-4310
- Publication type
Article
- DOI
10.3390/aerospace9100618