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A Quick Simulation Method for Aero-Optical Effects Based on a Density Proxy Model.

Bo Yang¹, He Yu¹, Chaofan Liu¹

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

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|February 11, 2023

Summary

This summary is machine-generated.

A new method quickly simulates aero-optical effects, crucial for hypersonic vehicles. This density proxy model (DP-AOQS) speeds up analysis, improving optical sensor accuracy and celestial navigation.

Keywords:

aero-optical effects celestial navigation density proxy model hypersonic vehicles optical sensors quick simulation

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Area of Science:

Fluid Dynamics
Optical Physics
Aerospace Engineering

Background:

High-speed flow fields cause aero-optical effects, degrading optical sensor accuracy and celestial navigation on hypersonic vehicles.
Current computational fluid dynamics (CFD) simulations are computationally intensive, hindering rapid analysis during engineering design.

Purpose of the Study:

To develop a rapid simulation method for aero-optical effects.
To address the limitations of traditional CFD simulations in engineering design.

Main Methods:

Proposed a density proxy model for aero-optical effects (DP-AOQS).
Developed a proxy model for the turbulent density field to replace CFD simulations.
Parametrically calibrated the proxy model to simulate optical characteristics of turbulent boundary layers.

Main Results:

DP-AOQS accurately simulates aero-optical effects in the visible light band.
Verified performance through density field distribution, optical path difference (OPD), and star map analysis.
Achieved rapid distortion results for various flight conditions while maintaining simulation accuracy.

Conclusions:

The DP-AOQS method offers a fast and accurate approach to analyzing aero-optical effects.
Provides a new analytical tool for studying aero-optical effects in aerospace applications.
Enhances the feasibility of celestial navigation and optical sensor application on hypersonic vehicles.