Slip-stick excitation and travelling waves excite silo honking
dc.contributor.author | Warburton, Katarzyna | |
dc.contributor.author | Porte, E | |
dc.contributor.author | Vriend, Nathalie | |
dc.date.accessioned | 2019-02-26T18:36:29Z | |
dc.date.available | 2019-02-26T18:36:29Z | |
dc.date.issued | 2017 | |
dc.identifier.issn | 2101-6275 | |
dc.identifier.uri | https://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.sponsorship | Royal Society, IMA summer internship fund | |
dc.publisher | EDP Sciences | |
dc.rights | Attribution 4.0 International | |
dc.rights.uri | https://creativecommons.org/licenses/by/4.0/ | |
dc.title | Slip-stick excitation and travelling waves excite silo honking | |
dc.type | Conference Object | |
prism.publicationDate | 2017 | |
prism.publicationName | EPJ Web of Conferences | |
prism.volume | 140 | |
dc.identifier.doi | 10.17863/CAM.37226 | |
dcterms.dateAccepted | 2017-06-30 | |
rioxxterms.versionofrecord | 10.1051/epjconf/201714010009 | |
rioxxterms.licenseref.uri | http://www.rioxx.net/licenses/all-rights-reserved | |
rioxxterms.licenseref.startdate | 2017-06-30 | |
dc.contributor.orcid | Warburton, Katarzyna [0000-0002-5537-0557] | |
dc.contributor.orcid | Vriend, Nathalie [0000-0002-1456-2317] | |
dc.identifier.eissn | 2100-014X | |
rioxxterms.type | Conference Paper/Proceeding/Abstract | |
cam.issuedOnline | 2017-06-30 | |
pubs.conference-name | Powders and Grains 2017 |
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