Real gas effects on the plasma sheath and the electromagnetic parameters of the reentry vehicle

LI Junhong; LÜ Junming; MIAO Wenbo; CHENG Xiaoli

doi:10.13224/j.cnki.jasp.20210124

Volume 37 Issue 8

Sep 2022

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JOURNAL OF MECHANICAL ENGINEERING > 2022 > 37(8): 1579-1586.

LI Junhong，LÜ Junming，MIAO Wenbo，et al.Real gas effects on the plasma sheath and the electromagnetic parameters of the reentry vehicle［J］.Journal of Aerospace Power，2022，37（8）：1579‑1586. doi: 10.13224/j.cnki.jasp.20210124

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Real gas effects on the plasma sheath and the electromagnetic parameters of the reentry vehicle

doi: 10.13224/j.cnki.jasp.20210124

LI Junhong^{1, 2},
LÜ Junming^{1, 2},
MIAO Wenbo^{1, 2},
CHENG Xiaoli^{1, 2}

1.
Institute of Aerodynamic Theory and Application，China Academy of Aerospace Aerodynamics，Beijing 100074，China
2.
Laboratory of Aero⁃thermal Protection Technology for Aerospace Vehicles，China Aerospace Science and Technology Corporation，Beijing 100074，China

Received Date: 19 Mar 2021
Available Online: 06 Sep 2022
Issue Publish Date: 28 Aug 2022

Abstract

Abstract

The numerical simulation technology of thermochemical non⁃equilibrium flow was established for aircraft hypersonic flight environment，the reliability of the calculation method was verified，and the influence law of high temperature real gas effect on plasma sheath and electromagnetic parameters in plasma was analyzed.The results showed:the numerical calculation results of aircraft peak plasma density on wall central line were in agreement with flight test results，as for the collision frequency，along the stagnation line，the two⁃temperature model and the Park reaction model had the same influence trend on the plasma collision frequency；for the relative dielectric constant，near the shock wave，the real part of other areas of the flow field was close to 1，and the imaginary part gradually increased along the stagnation line；The influence trend of the two⁃temperature model and the Park reaction model on the real and imaginary parts of the relative dielectric constant were consistent.
- thermochemical non⁃equilibrium,
- plasma sheath,
- real gas effect,
- two⁃temperature model,
- electromagnetic parameters

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References

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Real gas effects on the plasma sheath and the electromagnetic parameters of the reentry vehicle

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