Fluid Mechanics and Flight Mechanics

Micro-energy analysis method for time-varying error of aero-optical effects

  • Bo YANG ,
  • He YU ,
  • Zichen FAN
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  • 1.School of Astronautics,Beihang University,Beijing  100083,China
    2.Beijing Institute of Control and Electronic Technology,Beijing  100038,China

Received date: 2023-03-15

  Revised date: 2023-04-03

  Accepted date: 2023-04-23

  Online published: 2023-04-28

Supported by

National Natural Science Foundation of China(61973018);National Defense Preresearch Foundation of China(JCKY2016601C005);Science and Technology on Space Intelligent Control Laboratory of China(ZDSYS-2018-03)

Abstract

Imaging distortion of optical sensors caused by the aero-optical effects seriously interferes with the navigation accuracy during atmospheric flight of hypersonic vehicles with autonomous celestial navigation. To address this problem, we propose a method to explore the time-varying error of the aero-optical effect at the level of micro-energy change mechanism. This method analyzes the interaction mechanism between photons and turbulent molecules based on the photon transport theory, establishes the photon transport model in the high-speed flow field, and calculates the energy distribution of photons in the turbulent transport process. By establishing the aero-optical effect evaluation function in the micro-photon system, we obtain the time-varying error description of the aero-optical effect, unify the relationship between the micro-energy analysis and the macro-geometric optics, and carry out comparative verification through numerical simulation analysis and wind tunnel test results, thereby providing a new perspective for the research on the aero-optical effect of hypersonic vehicles.

Cite this article

Bo YANG , He YU , Zichen FAN . Micro-energy analysis method for time-varying error of aero-optical effects[J]. ACTA AERONAUTICAET ASTRONAUTICA SINICA, 2024 , 45(4) : 128703 -128703 . DOI: 10.7527/S1000-6893.2023.28703

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