Experimental Investigation on the MHD Interaction around a Sharp Cone in an Ionized Argon Flow

Cristofolini, Andrea; Borghi, C.A.; Carraro, Mario; Neretti, Gabriele; Paganucci, Fabrizio; Biagioni, L.; Fantoni, G.; Passaro, A.

doi:10.2514/6.2006-3075

Cited by 10 publications

(7 citation statements)

References 4 publications

Supporting

Mentioning

Contrasting

Order By: Relevance

“…Furthermore, since conductivity in electromagnetic field assumes a tensorial form, Hall currents (due to Hall collisions) arise orthogonally to B and u B  directions and weaken Faraday currents as well as J B  force. The test considered here is the one described in Cristofolini et al (2006) and numerically investigated. It consists in an array of the magnets that has been assembled to form a conical test body with a half-vertex angle of 22.5 deg and the maximum diameter of 40 mm.…”

Section: Validation Test 2 -Ionization Chemistry In An Expansion Experiment: Calspan Nozzlementioning

confidence: 99%

“…15 where also the computational grid characterized by 78x60 cells is depicted. Magnetic field is given as boundary condition on the wall of the test article and has been deduced from Cristofolini (2006). For the outer boundary the Orlanski boundary condition has been used except for the face on the symmetry plane where the proper boundary condition has been applied.…”

Section: Fig 14 Geometry Of the Test Bodymentioning

confidence: 99%

See 1 more Smart Citation

Fluid Dynamics, Computational Modeling and Applications

Juárez¹

2012

View full text Add to dashboard Cite

received his Ph.D. in mathematics from the University of Houston (USA), in 1996. He also was a postdoctoral fellow and assistant visiting professor of the same institution during the period 1999-2002. Since 2002 he is full professor of applied mathematics at the Universidad Autonoma Metropolitana-Iztapalapa (UAM-I) in Mexico City, and currently is a Fellow of the National Research System in Mexico, level 2. He has participated in numerous research projects and published several research articles, reports, conference proceedings and book chapters, mainly in CFD, numerical solution of PDE, mathematical modeling and computer simulation. He has been supervisor of several graduate students, and has participated in numerous academic committees. It has also helped organize numerous national and international meetings in Mexico, and he has participated in many others abroad. Professor Juárez was recently elected member of the Main Board of the Mexican Mathematical Society for the period 2012-2014.

show abstract

Section: Validation Test 2 -Ionization Chemistry In An Expansion Experiment: Calspan Nozzlementioning

confidence: 99%

Section: Fig 14 Geometry Of the Test Bodymentioning

confidence: 99%

Fluid Dynamics, Computational Modeling and Applications

Juárez¹

2012

View full text Add to dashboard Cite

show abstract

“…For computational simulations, a physical-based nonequilibrium, twotemperature, three-component plasma model was developed based on the classic drift-diffusion theory [8]. Meanwhile, DCD applications have been extended to axisymmetric configurations by Borghi et al [9] and Cristofolini et al [10].…”

mentioning

confidence: 99%

“…= electric permittivity = molecular viscosity e , = electron and ion mobility, respectively m = magnetic permeability = density = electric conductivity = shear stress tensor ' = electric potential = viscous-inviscid interaction parameter, M 3 C=Re 1=2 Introduction D IRECT current discharge (DCD) has been widely adopted as a hypersonic flow control mechanism [1][2][3][4][5][6][7][8][9][10][11][12][13][14][15]. Some of the early flow control ideas have been introduced since the late 1990s by Bityurin et al [1,3], Leonov et al [2], and many others.…”

mentioning

confidence: 99%

Surface Direct Current Discharge for Hypersonic Flow Control

Shang

2008

Journal of Spacecraft and Rockets

View full text Add to dashboard Cite

A hypersonic flow control mechanism has been found by using a near-surface gas discharge as a small flow perturbation and amplifying it by viscous-inviscid interaction. Substantiated evidence was collected from a plasma channel that operated at a hypersonic Mach number of 5.15. This flow control mechanism is simulated by integrating a drift-diffusion weakly ionized air model with compressible Navier-Stokes equations. The side-by-side investigations were performed for flows over surface plasma generated by a pair of embedded electrodes on a sharp leading wedge and on the entrance surface of rectangular and cylindrical constant cross section inlet models. The present effort demonstrates that the effect of a direct current discharge, when amplified by the viscous-inviscid interaction, can become a mechanism for hypersonic flow control. The research results from computational simulations, after being verified with experimental observations, are summarized for a virtual hypersonic leadingedge strake and virtual variable-area hypersonic inlet cowl. Nomenclature B = magnetic field strength D e , D = diffusion coefficients of electron and ion, respectively E = electric field strength e = specific internal energy F = flux vector of conservation equations i, j = unit vector of x, y coordinates J = electric current density n e , n = number density of electron and ion, respectively q = conductive heat transfer U = dependent variables of conservation equations u = velocity vector, uu; v e , = electron and ion number density flux vector = secondary emission coefficient "= electric permittivity = molecular viscosity e , = electron and ion mobility, respectively m = magnetic permeability = density = electric conductivity = shear stress tensor ' = electric potential = viscous-inviscid interaction parameter, M 3 C=Re 1=2

show abstract

“…Scheme of the interaction over a blunt body Such concepts are used for active flow control in the experiment considered here and used for models validation. The test considered here is the one described in Cristofolini et al (2006) Battista (2009), since the experiment considered here has been carried out in ALTA Heat facility using Mach 6 nozzle .…”

Section: Validation Test 2 -Ionization Chemistry In An Expansion Expementioning

confidence: 99%