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dc.contributor.authorWarburton, Katarzyna
dc.contributor.authorPorte, E
dc.contributor.authorVriend, Nathalie
dc.date.accessioned2019-02-26T18:36:29Z
dc.date.available2019-02-26T18:36:29Z
dc.date.issued2017
dc.identifier.issn2101-6275
dc.identifier.urihttps://www.repository.cam.ac.uk/handle/1810/289999
dc.description.abstract© The Authors, published by EDP Sciences, 2017. Silo honking is the harmonic sound generated by the discharge of a silo filled with a granular material. In industrial storage silos, the acoustic emission during discharge of PET-particles forms a nuisance for the environment and may ultimately result in structural failure. This work investigates the phenomenon experimentally using a laboratory-scale silo, and successfully correlates the frequency of the emitted sound with the periodicity of the mechanical motion of the grains. The key driver is the slip-stick interaction between the wall and the particles, characterized as a wave moving upwards through the silo. A quantitative correlation is established for the first time between the frequency of the sound, measured with an electret microphone, and the slip-frequency, measured with a high-speed camera. In the lower regions of the tube, both the slip-stick motion and the honking sound disappear.
dc.description.sponsorshipRoyal Society, IMA summer internship fund
dc.publisherEDP Sciences
dc.rightsAttribution 4.0 International
dc.rights.urihttps://creativecommons.org/licenses/by/4.0/
dc.titleSlip-stick excitation and travelling waves excite silo honking
dc.typeConference Object
prism.publicationDate2017
prism.publicationNameEPJ Web of Conferences
prism.volume140
dc.identifier.doi10.17863/CAM.37226
dcterms.dateAccepted2017-06-30
rioxxterms.versionofrecord10.1051/epjconf/201714010009
rioxxterms.licenseref.urihttp://www.rioxx.net/licenses/all-rights-reserved
rioxxterms.licenseref.startdate2017-06-30
dc.contributor.orcidWarburton, Katarzyna [0000-0002-5537-0557]
dc.contributor.orcidVriend, Nathalie [0000-0002-1456-2317]
dc.identifier.eissn2100-014X
rioxxterms.typeConference Paper/Proceeding/Abstract
cam.issuedOnline2017-06-30
pubs.conference-namePowders and Grains 2017


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Attribution 4.0 International
Except where otherwise noted, this item's licence is described as Attribution 4.0 International