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- Title
A study of the transmission characteristics of terahertz waves in hypersonic target flow field.
- Authors
Zhang, Jie; Han, Bing; Zhao, Shanchao; Zhang, Guodong; Duan, Wenshan
- Abstract
Based on the chemical reaction model proposed by Park, the 'blackout' of a reentry vehicle is studied in this paper. The temperature, pressure and electron density distribution characteristics around the reentry vehicle were simulated at various flight speeds and altitudes by USim. Subsequently, the scattering matrix method was used to study the transmission characteristics of terahertz waves in 'blackout'. The simulation results show that the temperature around the aircraft is mainly affected by speed, the pressure is mainly affected by the altitude and electron density is affected by both of these factors. The calculation results show that the transmission characteristics of terahertz waves in plasma are mainly affected by electron density, while the effects of temperature and pressure cannot be ignored either.
- Subjects
SUBMILLIMETER waves; HYPERSONIC flow; ELECTRON density; ELECTRON distribution; S-matrix theory; HYPERSONIC aerodynamics; PLASMA sheaths; PLASMA waves
- Publication
Journal of Plasma Physics, 2022, Vol 88, Issue 4, p1
- ISSN
0022-3778
- Publication type
Article
- DOI
10.1017/S0022377822000678