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Physico-Chemical Modelling and Numerical Simulation of an Inductive Plasmatron

Sarma, G.S.R. und Vanden Abeele, D. und Bottin, B. und Degrez, G. (1999) Physico-Chemical Modelling and Numerical Simulation of an Inductive Plasmatron. Systems Analysis Modelling Simulation (SAMS), 34 (2), Seiten 169-187.

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Kurzfassung

This contribution report on the development of numerical models of the inductive plasmas at sub-atmospheric pressures in the 1.2 MW Plasmatron wind tunnel constructed at the von Karman Institute. This facility will serve as an experimental means of testing thermal protection systems installed on space vehicles to protect them during the atmospheric (re-)entry phase of their flight. Numerical models are being developed to cover design and fundamental theoretical issues. As a first step in the development, the flow inside the plasma wind tunnel is assumed to be in a state of local thermodynamic equilibrium (LTE). This assumption is valid only at near the atmospheric pressure. The thermodynamic properties of a chemically reacting mixture of gases under LTE are determined by means of statistical mechanics. The transport coefficients of an ionised mixture of gases in the collision-dominated regime are computed through the Chapman-Enskog spectral Sonine solution of the Boltzmann equation. Mixture rules suited for inductive plasma conditions are referred to. Results are shown for the thermodynamic and transport properties of air and other gases; comparisons are made with numerical and experimental results of other researchers. An LTE model of the inductive plasmas inside the plasma torch of the VKI Plasmatron wind tunnel is presented. The governing MHD equations for the specific case of inductive plasmas are given. The discretisation method and the iterative solution procedure used in the model are described. Numerical results are given for an argon inductive plasma at 1 atm

Dokumentart:Zeitschriftenbeitrag
Zusätzliche Informationen: LIDO-Berichtsjahr=1999,
Titel:Physico-Chemical Modelling and Numerical Simulation of an Inductive Plasmatron
Autoren:
AutorenInstitution oder E-Mail-Adresse der Autoren
Sarma, G.S.R.NICHT SPEZIFIZIERT
Vanden Abeele, D.VKI
Bottin, B.VKI
Degrez, G.VKI
Datum:1999
Erschienen in:Systems Analysis Modelling Simulation (SAMS)
Referierte Publikation:Nein
In SCOPUS:Nein
In ISI Web of Science:Nein
Band:34
Seitenbereich:Seiten 169-187
Status:veröffentlicht
Stichwörter:computational fluid dynamics, plasmatron, reactive flow
HGF - Forschungsbereich:Verkehr und Weltraum (alt)
HGF - Programm:Weltraum (alt)
HGF - Programmthema:W RP - Raumtransport
DLR - Schwerpunkt:Weltraum
DLR - Forschungsgebiet:W RP - Raumtransport
DLR - Teilgebiet (Projekt, Vorhaben):NICHT SPEZIFIZIERT
Standort: Köln-Porz , Braunschweig , Göttingen
Institute & Einrichtungen:Institut für Aerodynamik und Strömungstechnik > Institut für Strömungsmechanik
Hinterlegt von: elib DLR-Beauftragter
Hinterlegt am:16 Sep 2005
Letzte Änderung:14 Jan 2010 20:27

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