Numerical and Experimental Simulation of Magnetohydrodynamic Interaction in a Hypersonic Flow of a Blunt Body

Korotaeva, T. A.; Фомичев, В. В.; Yadrenkin, M. A.

doi:10.1134/s0021894420020029

Cited by 6 publications

(1 citation statement)

References 5 publications

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“…The present study is not only scientific but also of practical interest in the context of to optimize particular plasma technologies [49][50][51][52][53]. It is necessary to know the reaction constants involving electrons, which can lead to the production of chemically active heavy particles (radicals).…”

Section: Introductionmentioning

confidence: 99%

Two-term Boltzmann approximation versus Monte-Carlo simulation: effect of magnetic field

Tereshonok,

Chernyshev,

Abramov

et al. 2024

Phys. Scr.

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In this paper, we investigate the spatial-local electron energy distribution function (eEDF) interacting with a backgroundgas at the sub-atmospheric pressure in a wide range of applied crossed electric and magnetic fields using the Boltzmannkinetic equation. We compare solutions obtained using two numerical approaches (deterministic two-term approximation andstochastic Monte Carlo method) to identify their applicability in the context of determining drift velocity and reaction constantsfor electrons. For argon and helium, the upper limit of the reduced electric field applicability of the two-term approximationis discussed. It has been shown that the presence of a magnetic field can reduce this limit. Two explanations are given, oneis based on the math of two-term formalism, and the other is based on velocity-space analysis. Two-term approximation failsdue to it’s inability to resolve underlying cyclotron oscillation (it should result in an energy variation along the electron’strajectory). The absence of this feature causes an incorrect estimation of momentum-transfer rate. This results an inaccuracyin the estimation of the angle between electric field and drift velocity.

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Section: Introductionmentioning

confidence: 99%

Two-term Boltzmann approximation versus Monte-Carlo simulation: effect of magnetic field

Tereshonok,

Chernyshev,

Abramov

et al. 2024

Phys. Scr.

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Influence mechanism of magnetic field direction on magnetic drag of reentry vehicle and better magnetic field direction

Chen

Zhen-guo

et al. 2023

Acta Astronautica

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Side plasma flow and stagnation of a conical blunt body vehicle under an axial dipole magnetic field

Wang,

Tian,

et al. 2023

Fluid Dyn. Res.

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The study of plasma flow under the thermal protection magnetic field of reentry vehicle is helpful to verify the magnetic control thermal protection technology and further understand its flow law. By solving hypersonic magnetohydrodynamics equations and combining with dipole magnetic field conditions, the plasma flow mechanism of RAM-CII (Radio Attenuation Measurement Experiment) spacecraft at 61km altitude is analyzed and compared with OREX (Orbital Reentry Experiment) spacecraft under the same conditions. The results show that the plasma flow of RAM-CII is more complex than that of OREX, and there are several regions with different Lorentz force directions near the aircraft, which play the role of plasma ejection and adsorption. Under the action of Lorentz force, the side flow of the aircraft will be separated and reattached, and the fluid stagnation zone will be generated. The results show that for different shapes of aircraft, the flow laws caused by magnetic thermal protection technology are different, and the side flow may be greatly affected.

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Numerical and Experimental Simulation of Magnetohydrodynamic Interaction in a Hypersonic Flow of a Blunt Body

Cited by 6 publications

References 5 publications

Two-term Boltzmann approximation versus Monte-Carlo simulation: effect of magnetic field

Two-term Boltzmann approximation versus Monte-Carlo simulation: effect of magnetic field

Influence mechanism of magnetic field direction on magnetic drag of reentry vehicle and better magnetic field direction

Side plasma flow and stagnation of a conical blunt body vehicle under an axial dipole magnetic field

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