Journal ArticleDOI
Heat Transfer to a Hemispherical Body in a Supersonic Argon Plasma
Robert J. Nowak,M. C. Yuen +1 more
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In this paper, heat transfer was investigated in a Mach 4.6 low-density Ar plasma in the absence and presence of magnetic fields up to 0.5 Telsa.Abstract:
Heat transfer was mcasured for conducting (copper) and nonconducting (teflon) models in a Mach 4.6 low-density Ar plasma in the absence and presence of magnetic fields up to 0.5 Telsa. Results show the importance of local wall currents both with and without magnetic field. For the conducting model, an electron flux entering the surface increased the stagnation-region heat flux compared to the nonconducting model. For the nonconducting model, theory predicts well the heat transfer for zero field but fails to predict the slight increase at the stagnation region with high magnetic field. (DLC)read more
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Proceedings ArticleDOI
Stanford University Unstructured (SU 2 ): An open-source integrated computational environment for multi-physics simulation and design
Francisco Palacios,Juan J. Alonso,Karthikeyan Duraisamy,Michael Colonno,Jason E. Hicken,Aniket C. Aranake,Alejandro Campos,Sean R. Copeland,Thomas D. Economon,Amrita K. Lonkar,Trent Lukaczyk,Thomas Taylor +11 more
TL;DR: The history, objectives, structure, and current capabilities of the Stanford University Unstructured (SU 2) tool suite are described, and the efforts to develop SU 2 as an integrated platform are attempted.
Journal ArticleDOI
Experimental Verification of Heat-Flux Mitigation by Electromagnetic Fields in Partially-Ionized-Argon Flows
Ali Gülhan,Burkard Esser,Uwe Koch,Frank Siebe,Johannes Riehmer,Domenico Giordano,Detlev Konigorski +6 more
TL;DR: In this article, an experimental study on heat-flux mitigation within highenthalpy ionized-argon flows by application of an external magnetic-induction field was conducted using axially symmetric test models containing water-cooled magnet coils.
Proceedings ArticleDOI
Hypersonic-Flow Governing Equations with Electromagnetic Files
TL;DR: In this article, a consistent set of governing equations apt to describe the physical phenomenology comprising the hypersonic flow field of an ionized gas mixture and the electromagnetic field is formulated.
Journal ArticleDOI
Experiment on Drag Enhancement for a Blunt Body with Electrodynamic Heat Shield
Masaaki Kawamura,Atsushi Matsuda,Hiroshi Katsurayama,Hirotaka Otsu,Detlev Konigorski,Shunichi Sato,Takashi Abe +6 more
TL;DR: In this paper, the authors experimentally verify not only the drag enhancement, but also the integrated Lorentz force, which is the main cause for the increase in drag, and this experimental verification is a direct corroboration of the interaction that is a basis of the electrodynamic heat-shield technique.
Journal ArticleDOI
Kinetic and Continuum Simulations of Electromagnetic Control of a Simulated Reentry Flow
TL;DR: In this article, a weakly ionized supersonic rarefied argon flow past a magnetized blunt body is simulated using the direct simulation Monte Carlo method with Ohm's law.
References
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Journal ArticleDOI
Theory of Stagnation Point Heat Transfer in Dissociated Air
J. A. Fay,F. R. Riddell +1 more
Journal ArticleDOI
Laminar Heat Transfer Over Blunt-Nosed Bodies at Hypersonic Flight Speeds
TL;DR: In this article, the authors considered the case of laminar heat transfer over blunt-nosed bodies at hypersonic flight speeds, or high s tagnat ion temperatures, in which the chemical reaction rates are regarded as "very fas t" compared to the rates of diffusion across streamlines.
An analysis of the coupled chemically reacting boundary layer and charring ablator, part 1 Summary report
TL;DR: Analyses and finite difference procedure for predicting transient in-depth response of charring ablation materials was proposed in this article, where the finite difference was used to predict transient indepth response.
Journal ArticleDOI
Magnetic Hypersonic Flow near the Stagnation Point at Low Reynolds Number
TL;DR: In this article, the authors present an experimental and theoretical analysis of the pressure distribution and flow fields of Blunted Cones at Hypersonic Mach Numbers, with application to Bodies of Revolution.
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