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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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Abstract

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.

Document Type:Conference or Workshop Item (Speech, Paper)
Title:A Numerical Study of Magnetohydrodynamic Flows with Respect to the Hall Effect
Authors:
AuthorsInstitution or Email of Authors
Böttcher, Carmencarmen.boettcher@dlr.de
Date:October 2009
Refereed publication:No
In ISI Web of Science:No
Status:Published
Keywords:CFD, simulation, MHD, magnetohydrodynamics, magnetogasdynamics, Hall effect
Event Title:16th AIAA/DGLR International Space Planes and Hypersonic Systems and Technologies Conference
Event Location:Bremen, Germany
Event Type:international Conference
Event Dates:2009-10-19 - 2009-10-22
Organizer:AIAA, DGLR, DLR
HGF - Research field:Aeronautics, Space and Transport (old)
HGF - Program:Space (old)
HGF - Program Themes:W RP - Raumtransport
DLR - Research area:Space
DLR - Program:W RP - Raumtransport
DLR - Research theme (Project):W - Grundlagen Raumtransport - numerische Verfahren (old)
Location: Braunschweig , Göttingen
Institutes and Institutions:Institute of Aerodynamics and Flow Technology > Spacecraft
Deposited By: Carmen Böttcher
Deposited On:06 Nov 2009 08:45
Last Modified:12 Dec 2013 20:37

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