Title: Mach 2 rarefied airflow over a plate submitted to a DC discharge: surface temperature gradient investigation

Authors: Jean-Denis Parisse; Alexey N. Kudryavtsev; Viviana Lago

Addresses: IUSTI/UMR CNRS 7343, Aix Marseille Université, Technopôle de Château Gombert, 5 rue Enrico Fermi, 13013 Marseille, France; Institut de Combustion, Aérothermique, Réactivité et Environnement CNRS, UPR 3021 ICARE CNRS, UPR 3021, 1C Avenue de la Recherche Scientifique 45071 Orléans Cedex 2, France; Lab. Computational Aerodynamics, ITAM, Russ. Acad. Sciences, 4/1 Institutkaya, Novosibirsk 630090, Russia ' IUSTI/UMR CNRS 7343, Aix Marseille Université, Technopôle de Château Gombert, 5 rue Enrico Fermi, 13013 Marseille, France; Institut de Combustion, Aérothermique, Réactivité et Environnement CNRS, UPR 3021 ICARE CNRS, UPR 3021, 1C Avenue de la Recherche Scientifique 45071 Orléans Cedex 2, France; Lab. Computational Aerodynamics, ITAM, Russ. Acad. Sciences, 4/1 Institutkaya, Novosibirsk 630090, Russia ' IUSTI/UMR CNRS 7343, Aix Marseille Université, Technopôle de Château Gombert, 5 rue Enrico Fermi, 13013 Marseille, France; Institut de Combustion, Aérothermique, Réactivité et Environnement CNRS, UPR 3021 ICARE CNRS, UPR 3021, 1C Avenue de la Recherche Scientifique 45071 Orléans Cedex 2, France; Lab. Computational Aerodynamics, ITAM, Russ. Acad. Sciences, 4/1 Institutkaya, Novosibirsk 630090, Russia

Abstract: This study is devoted to a much deeper understanding of the interaction between a rarefied Mach 2 airflow surrounding a flat plate and a DC discharge. In previous works, it has been demonstrated that the interaction is mainly due to the plate surface thermal heating, whereas numerical simulations have been achieved with isothermal hypothesis. The aim of this work is to have a much precise description of this interaction by taking into account thermal gradient of the surface heating. This should lead to a much better agreement between simulations and experimental results and so improve the understanding of the physical phenomena involved.

Keywords: plasma flow control; shock wave; electrical discharge; rarefied flow; supersonic flow; numerical simulation; WENO; non-equilibrium; Mach 2 airflow; DC discharge; surface temperature gradient; flat plates; thermal gradient; surface heating; aerodynamics.

DOI: 10.1504/IJESMS.2015.072513

International Journal of Engineering Systems Modelling and Simulation, 2015 Vol.7 No.4, pp.271 - 278

Available online: 16 Oct 2015 *

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