Show simple item record

dc.contributor.authorWoodfield, Peter Lloyd
dc.contributor.authorSeagar, Andrew
dc.contributor.authorHall, Wayne
dc.date.accessioned2017-05-03T15:47:59Z
dc.date.available2017-05-03T15:47:59Z
dc.date.issued2012
dc.date.modified2012-09-20T21:53:55Z
dc.identifier.issn0195-928X
dc.identifier.doi10.1007/s10765-012-1157-5
dc.identifier.urihttp://hdl.handle.net/10072/46883
dc.description.abstractVibrating wire viscometers rely on the principle that the viscosity of the fluid surrounding the wire provides the dominant damping action on the motion of the wire. However, some residual damping is always present due to other effects such as internal friction of the wire (anelastic relaxation), losses through the wire supports, and magnetic damping. Magnetic damping is a physical mechanism that has received relatively less attention than internal friction in the context of viscometers. The phenomenon arises because the current induced by the motion of the wire contributes to the magnetic field in such a way as to oppose its own motion. For a test circuit using a 40 孤iameter tungstenwire in a 0.3Tmagnetic field, surprisingly, the effect of magnetic damping was found to be of a similar order of magnitude to other non-viscous damping effects. The effect can be accounted for by including the internal impedance of the oscillating voltage source in themodel and it disappears completely for a perfect oscillating current source.
dc.description.peerreviewedYes
dc.description.publicationstatusYes
dc.languageEnglish
dc.language.isoeng
dc.publisherSpringer
dc.publisher.placeUnited States
dc.relation.ispartofstudentpublicationN
dc.relation.ispartofpagefrom259
dc.relation.ispartofpageto278
dc.relation.ispartofissue2
dc.relation.ispartofjournalInternational Journal of Thermophysics
dc.relation.ispartofvolume33
dc.rights.retentionY
dc.subject.fieldofresearchMechanical Engineering not elsewhere classified
dc.subject.fieldofresearchClassical Physics
dc.subject.fieldofresearchPhysical Chemistry (incl. Structural)
dc.subject.fieldofresearchChemical Engineering
dc.subject.fieldofresearchcode091399
dc.subject.fieldofresearchcode0203
dc.subject.fieldofresearchcode0306
dc.subject.fieldofresearchcode0904
dc.titleMagnetic Damping Effects in Forced-Oscillation Vibrating-Wire Viscometers
dc.typeJournal article
dc.type.descriptionC1 - Articles
dc.type.codeC - Journal Articles
gro.facultyGriffith Sciences, Griffith School of Engineering
gro.date.issued2012
gro.hasfulltextNo Full Text
gro.griffith.authorHall, Wayne
gro.griffith.authorSeagar, Andrew
gro.griffith.authorWoodfield, Peter L.


Files in this item

FilesSizeFormatView

There are no files associated with this item.

This item appears in the following Collection(s)

  • Journal articles
    Contains articles published by Griffith authors in scholarly journals.

Show simple item record