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A Numerical Study of Magnetohydrodynamic Flows with Respect to the Hall Effect

Böttcher, Carmen (2009) A Numerical Study of Magnetohydrodynamic Flows with Respect to the Hall Effect. 16th AIAA/DGLR International Space Planes and Hypersonic Systems and Technologies Conference, 2009-10-19 - 2009-10-22, Bremen, Germany.

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Kurzfassung

With a view to the utilization of magnetic fields in hypersonic flow control an extension of the Navier-Stokes equations by magnetohydrodynamic source terms is described. The DLR TAU Code is employed as numerical tool and enhanced to simulate magnetohydrodynamic effects. As axisymmetric numerical setup a hemisphere-cylinder in a Mach 9 flow in air with an onboard 3-D dipole is chosen. The wall of the blunt body is assumed to be electrically conducting. The induced electric current density is determined by the generalized Ohm's Law. Different simulations with application of the magnetic field and with respectively without Hall effect are presented. The results are compared to a reference simulation without magnetic field. The impact of the magnetohydrodynamic source terms results in an increment of the shock distance compared to simulations without magnetic field. Thereby the effect depends on the treatment of the Hall parameter. In particular it turns out that the enhancement is reduced significantly if the Hall parameter is calculated as a local variable.

Dokumentart:Konferenzbeitrag (Vortrag, Paper)
Titel:A Numerical Study of Magnetohydrodynamic Flows with Respect to the Hall Effect
Autoren:
AutorenInstitution oder E-Mail-Adresse der Autoren
Böttcher, Carmencarmen.boettcher@dlr.de
Datum:Oktober 2009
Referierte Publikation:Nein
In ISI Web of Science:Nein
Status:veröffentlicht
Stichwörter:CFD, simulation, MHD, magnetohydrodynamics, magnetogasdynamics, Hall effect
Veranstaltungstitel:16th AIAA/DGLR International Space Planes and Hypersonic Systems and Technologies Conference
Veranstaltungsort:Bremen, Germany
Veranstaltungsart:internationale Konferenz
Veranstaltungsdatum:2009-10-19 - 2009-10-22
Veranstalter :AIAA, DGLR, DLR
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):W - Grundlagen Raumtransport - numerische Verfahren (alt)
Standort: Braunschweig , Göttingen
Institute & Einrichtungen:Institut für Aerodynamik und Strömungstechnik > Raumfahrzeuge
Hinterlegt von: Carmen Böttcher
Hinterlegt am:06 Nov 2009 08:45
Letzte Änderung:12 Dez 2013 20:37

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