Effects of magnetic fields on magnetohydrodynamic cylindrical and spherical Richtmyer-Meshkov instability

Handle URI:
http://hdl.handle.net/10754/579559
Title:
Effects of magnetic fields on magnetohydrodynamic cylindrical and spherical Richtmyer-Meshkov instability
Authors:
Mostert, W. ( 0000-0001-6251-4136 ) ; Wheatley, V.; Samtaney, Ravi ( 0000-0002-4702-6473 ) ; Pullin, D. I.
Abstract:
The effects of seed magnetic fields on the Richtmyer-Meshkov instability driven by converging cylindrical and spherical implosions in ideal magnetohydrodynamics are investigated. Two different seed field configurations at various strengths are applied over a cylindrical or spherical density interface which has a single-dominant-mode perturbation. The shocks that excite the instability are generated with appropriate Riemann problems in a numerical formulation and the effect of the seed field on the growth rate and symmetry of the perturbations on the density interface is examined. We find reduced perturbation growth for both field configurations and all tested strengths. The extent of growth suppression increases with seed field strength but varies with the angle of the field to interface. The seed field configuration does not significantly affect extent of suppression of the instability, allowing it to be chosen to minimize its effect on implosion distortion. However, stronger seed fields are required in three dimensions to suppress the instability effectively.
KAUST Department:
Mechanical Engineering Program
Citation:
Effects of magnetic fields on magnetohydrodynamic cylindrical and spherical Richtmyer-Meshkov instability 2015, 27 (10):104102 Physics of Fluids
Publisher:
AIP Publishing
Journal:
Physics of Fluids
Issue Date:
6-Oct-2015
DOI:
10.1063/1.4932110
Type:
Article
ISSN:
1070-6631; 1089-7666
Additional Links:
http://scitation.aip.org/content/aip/journal/pof2/27/10/10.1063/1.4932110
Appears in Collections:
Articles; Mechanical Engineering Program

Full metadata record

DC FieldValue Language
dc.contributor.authorMostert, W.en
dc.contributor.authorWheatley, V.en
dc.contributor.authorSamtaney, Ravien
dc.contributor.authorPullin, D. I.en
dc.date.accessioned2015-10-11T11:10:23Zen
dc.date.available2015-10-11T11:10:23Zen
dc.date.issued2015-10-06en
dc.identifier.citationEffects of magnetic fields on magnetohydrodynamic cylindrical and spherical Richtmyer-Meshkov instability 2015, 27 (10):104102 Physics of Fluidsen
dc.identifier.issn1070-6631en
dc.identifier.issn1089-7666en
dc.identifier.doi10.1063/1.4932110en
dc.identifier.urihttp://hdl.handle.net/10754/579559en
dc.description.abstractThe effects of seed magnetic fields on the Richtmyer-Meshkov instability driven by converging cylindrical and spherical implosions in ideal magnetohydrodynamics are investigated. Two different seed field configurations at various strengths are applied over a cylindrical or spherical density interface which has a single-dominant-mode perturbation. The shocks that excite the instability are generated with appropriate Riemann problems in a numerical formulation and the effect of the seed field on the growth rate and symmetry of the perturbations on the density interface is examined. We find reduced perturbation growth for both field configurations and all tested strengths. The extent of growth suppression increases with seed field strength but varies with the angle of the field to interface. The seed field configuration does not significantly affect extent of suppression of the instability, allowing it to be chosen to minimize its effect on implosion distortion. However, stronger seed fields are required in three dimensions to suppress the instability effectively.en
dc.language.isoenen
dc.publisherAIP Publishingen
dc.relation.urlhttp://scitation.aip.org/content/aip/journal/pof2/27/10/10.1063/1.4932110en
dc.rightsArchived with thanks to Physics of Fluidsen
dc.titleEffects of magnetic fields on magnetohydrodynamic cylindrical and spherical Richtmyer-Meshkov instabilityen
dc.typeArticleen
dc.contributor.departmentMechanical Engineering Programen
dc.identifier.journalPhysics of Fluidsen
dc.eprint.versionPublisher's Version/PDFen
dc.contributor.institutionSchool of Mechanical and Mining Engineering, University of Queensland, Queensland 4072, Australiaen
dc.contributor.institutionSchool of Mechanical and Mining Engineering, University of Queensland, Queensland 4072, Australiaen
dc.contributor.institutionGraduate Aeronautical Laboratories, 301-46, California Institute of Technology, Pasadena, California 91125, USAen
dc.contributor.affiliationKing Abdullah University of Science and Technology (KAUST)en
kaust.authorSamtaney, Ravien
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