Polarization Scattering Characteristic of Plasma-Sheath-Covered Hypersonic Vehicle

Niu, Gezhao; Liu, Yanming; Bai, Bowen; Ding, Y.; Song, Lihao; Li, Xiaoping

doi:10.1109/tps.2023.3247837

Cited by 4 publications

(2 citation statements)

References 15 publications

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“…The PLJERC-FDTD method [10,15] used in this paper is an algorithm that combines the piecewise linear recursive convolution time-domain finite-difference algorithm and the JE Convolution Finitedifference Time-domain (JEC-FDTD) [30][31] finite-difference algorithm, which takes the system of Equation ( 15) as the starting point.…”

Section: Pljerc-fdtd Algorithmmentioning

confidence: 99%

Analysis of aerodynamic and stealth characteristics of aircraft under the action of microwave plasma

Wu,

Zhang,

Tian

et al. 2024

J. Phys.: Conf. Ser.

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This paper investigates the impact of plasma on the aerodynamic and stealth characteristics of hypersonic aircraft. Utilizing the finite volume method, the governing equations of the fluid mechanics were discretized, and the seven-element air chemical reaction model was employed for computations. A technique involving the alteration of the chemical reaction source term rate was employed to replicate the actual plasma concentration distortion phenomena induced by microwaves around hypersonic vehicles, enabling an analysis of the influence of plasma density distortion on the aerodynamic characteristics of these vehicles. In addition, the method of Piecewise Linear JE Recursive Convolution Finite-difference Time-domain (PLJERC-FDTD) is used to calculate the radar scattering cross-section of the target within both the initial and distorted flow fields. This allowed an examination of the variation in the aircraft’s stealth characteristics when exposed to distortion in an ionized environment.

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Section: Pljerc-fdtd Algorithmmentioning

confidence: 99%

Analysis of aerodynamic and stealth characteristics of aircraft under the action of microwave plasma

Wu,

Zhang,

Tian

et al. 2024

J. Phys.: Conf. Ser.

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“…Several methods have been developed including the physics optic method, shooting bouncing ray method, and so on. However, most of them focus on the rapid calculation of electrically large objects [4][5][6][7][8]. To analyze the time variation behavior, the finite-difference time-domain (FDTD) algorithm shows potential in the simulation of the blackout phenomenon [9].…”

Section: Introductionmentioning

confidence: 99%

Unconditionally Stable System Incorporated Factorization-Splitting Algorithm for Blackout Re-Entry Vehicle

Wen

Wang²,

2023

Electronics

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A high-temperature plasma sheath is generated on the surface of the re-entry vehicle through the conversion of kinetic energy to thermal and chemical energy across a strong shock wave at the hypersonic speed. Such a condition results in the forming of a blackout which significantly affects the communication components. To analyze the re-entry vehicle at the hypersonic speed, an unconditionally stable system incorporated factorization-splitting (SIFS) algorithm is proposed in finite-difference time-domain (FDTD) grids. The proposed algorithm shows advantages in the entire performance by simplifying the update implementation in multi-scale problems. The plasma sheath is analyzed based on the modified auxiliary difference equation (ADE) method according to the integer time step scheme in the unconditionally stable algorithm. Higher order perfectly matched layer (PML) formulation is modified to simulate open region problems. Numerical examples are carried out to demonstrate the performance of the algorithm from the aspects of target characteristics and antenna model. From resultants, it can be concluded that the proposed algorithm shows considerable accuracy, efficiency, and absorption during the simulation. Meanwhile, plasma sheath significantly affects the communication and detection of the re-entry vehicle.

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Non-equilibrium plasma distribution in the wake of a slender blunted-nose cone in hypersonic flight and its effect on the radar cross section

Esposito,

Scarabosio,

Vecchi

et al. 2024

Aerospace Science and Technology

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Polarization Scattering Characteristic of Plasma-Sheath-Covered Hypersonic Vehicle

Cited by 4 publications

References 15 publications

Analysis of aerodynamic and stealth characteristics of aircraft under the action of microwave plasma

Analysis of aerodynamic and stealth characteristics of aircraft under the action of microwave plasma

Unconditionally Stable System Incorporated Factorization-Splitting Algorithm for Blackout Re-Entry Vehicle

Non-equilibrium plasma distribution in the wake of a slender blunted-nose cone in hypersonic flight and its effect on the radar cross section

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