Influences of Electrical Conductivity of Wall on Magnetohydrodynamic  Control of Aeroynamic Heating

Fujino, Takayasu; Sugita, Hiroyuki; Mizuno, Masahito; Funaki, Ikkoh; Ishikawa, Masatoshi

doi:10.2514/1.13770

Cited by 62 publications

(20 citation statements)

References 14 publications

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“…This indicates that the Hall effect does not affect the Lorentz force very much when the surface is the insulating wall. The similar trend for the flowfield, for the insulating wall and the conducting wall, is found in [5,6]. However, the present study has clarified that the conclusion is not influenced very much over a wide range of the Hall parameter.…”

Section: B Impact Of Hall Effect On Flowfieldsupporting

confidence: 47%

“…That is, they demonstrated that the electrodynamic shield effect appears as a result of Q. In contrast, Fujino et al [5,6] recently showed that the electrodynamic shield effect is strongly affected by the effect of C H;r by their simulation, which includes the nonequilibrium chemical reaction effect. Nevertheless, it was still unclear how the effect of C H;r appears, since both the parameters are determined self-consistently in their simulation; hence, the phenomenon remains complicated.…”

Section: Governing Equations and Physical Modelsmentioning

confidence: 99%

“…Although most of the previous research does not take account of the Hall effect, the impact of the Hall effect was investigated analytically and numerically by some researchers [3][4][5]. Levy [3] analytically investigated the two-dimensional plasma flow around a cylinder with an imposed magnetic field, which is created by the current in the wire parallel to the axis of the cylinder.…”

mentioning

confidence: 99%

“…As a result, they also showed that the Hall effect weakens the efficiency of this system. Recently, Fujino et al [5,6] have performed computational fluid dynamics (CFD) analyses for a magnetic flow control for a reentry vehicle including the Hall effect. In their study, they investigated a three-dimensional flow around an axis-symmetry body and solved a full Navier-Stokes equation, including the nonequilibrium chemical reactions.…”

mentioning

confidence: 99%

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Influence of Hall Effect on Electrodynamic Heat Shield System for Reentry Vehicles

Otsu

Konigorski²,

Abe

2010

AIAA Journal

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The influence of the Hall effect on the magnetic flow control to a reentry vehicle with a hemispherical nose and the imposed dipole magnetic field was investigated. For this purpose, a parametric study for the Hall parameter was conducted. The present result shows that the Hall effect drastically affects the electric potential distribution and electric current pattern inside the shock layer, depending on the vehicle surface conductivity, but it does not affect the current strength in the circumferential direction in the case of the insulating wall. As a result, the shock-standoff distance does not change, even if the Hall effect is significant when the vehicle surface is regarded as an insulating wall. The present parametric study clarified that this conclusion is applicable in a wide variety of the Hall parameter and enables us to get an insight of the mechanism behind the phenomenon. This conclusion suggests that, if the vehicle surface is regarded as an insulating wall, the magnetic flow control for the reentry vehicle will prove to still be a useful technology, even when the Hall effect is taken into account.

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Section: B Impact Of Hall Effect On Flowfieldsupporting

confidence: 47%

Section: Governing Equations and Physical Modelsmentioning

confidence: 99%

mentioning

confidence: 99%

mentioning

confidence: 99%

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Influence of Hall Effect on Electrodynamic Heat Shield System for Reentry Vehicles

Otsu

Konigorski²,

Abe

2010

AIAA Journal

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“…Unsteady magnetohydrodynamic (MHD) boundary layer flows continue to stimulate significant interest in engineering sciences and applied physics owing to new emerging applications in magnetic materials processing [1] , optimization of Hall and Faraday MHD generators [2] , heat transfer control in nuclear reactors [3] and external ionized aerodynamics of flight vehicles [4] . The combined momentum, heat, and mass transfer from a vertical systems, solidification of binary alloys and crystal growth dispersion of dissolved materials, drying and dehydration operations in food processing plants, and rocket atomized liquid fuel burning.…”

Section: Introductionmentioning

confidence: 99%

Numerical investigation of radiative optically-dense transient magnetized reactive transport phenomena with cross diffusion, dissipation and wall mass flux effects

Bég

Ferdows

Bég³

et al. 2016

Journal of the Taiwan Institute of Chemical Engineers

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a b s t r a c tHigh temperature electromagnetic materials fabrication systems in chemical engineering require ever more sophisticated theoretical and computational models for describing multiple, simultaneous thermophysical effects. Motivated by this application, the present paper addresses transient magnetohydrodynamic heat and mass transfer in chemically-reacting fluid flow from an impulsively-started vertical perforated sheet. Thermal radiation flux, internal heat generation (heat source), Joule magnetic heating (Ohmic dissipation), thermo-diffusive and diffuso-thermal ( i.e. cross-diffusion) effects and also viscous dissipation are incorporated in the mathematical model. To facilitate numerical solutions of the coupled, nonlinear boundary value problem, non-similar transformations are employed and the partial differential conservation equations are normalized into a dimensionless system of momentum, energy and concentration equations with associated boundary thermal conditions. An implicit finite difference method ( FDM ) is utilized to solve the unsteady equations. Verification of the FDM solutions for dimensionless velocity, temperature and concentration functions is achieved with a variational finite element method code ( MAGNETO-FEM ) and also a network simulation method code ( MAG-PSPICE ). The influence of the emerging thermo-physical parameters on transient velocity, temperature, concentration, wall shear stress, Nusselt number and Sherwood number is elaborated. The flow is accelerated with increasing thermal radiative flux, Eckert number, heat generation and Soret number whereas the flow is decelerated with greater wall suction, heat absorption, magnetic field and Prandtl number. Temperatures are also observed to be elevated with magnetic parameter, radiation heat transfer, Dufour number, heat generation (source) and Eckert number with the contrary effects computed for increasing suction parameter or Prandtl number. The species concentration is enhanced with Soret number and generative chemical reaction whereas it is depressed with greater wall suction, Schimidt number and destructive chemical reaction parameter

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An Electrodynamic Aerobraking Experiment in a Rarefied Arc-Heated Flow

Katsurayama

Fukuda

Toyodome

et al. 2019

31st International Symposium on Shock Waves 2

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Influences of Electrical Conductivity of Wall on Magnetohydrodynamic Control of Aeroynamic Heating

Cited by 62 publications

References 14 publications

Influence of Hall Effect on Electrodynamic Heat Shield System for Reentry Vehicles

Influence of Hall Effect on Electrodynamic Heat Shield System for Reentry Vehicles

Numerical investigation of radiative optically-dense transient magnetized reactive transport phenomena with cross diffusion, dissipation and wall mass flux effects

An Electrodynamic Aerobraking Experiment in a Rarefied Arc-Heated Flow

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