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Well-posed continuum equations for granular flow with compressibility and μ(I)-rheology

Autor: Barker, Tom, Schaeffer, David, Shearer, Micheal, Gray, Nico

Publikováno v: Barker, T, Schaeffer, D, Shearer, M & Gray, N 2017, ' Well-posed continuum equations for granular flow with compressibility and μ(I)-rheology ', Proceedings of the Royal Society A: Mathematical, Physical and Engineering Sciences, vol. 473, 20160846 . https://doi.org/10.1098/rspa.2016.0846

Externí odkaz: https://explore.openaire.eu/search/publication?articleId=od______3094::50c5008e5399cef42739a17864d4b56e
https://hdl.handle.net/20.500.11820/612c311d-da2e-462f-82e8-a50d8a537db9

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Beyond a black box: 'Hacking' a Nikon Metrology X-Ray CT Machine

Autor: Gajjar, Parmesh, Mcdonald, Sam, Jørgensen, Jakob S., Behnsen, Julia, Johnson, Chris, Gray, Nico, Lionheart, William, Turner, Martin, Withers, Philip J

X-Ray CT machines have been powerful tools for complete 3D imaging and analysis of medical specimens and industrial artefacts, ranging from the scanning of steam location and aeroplane jet engines to parasitic bacteria. Technological advances have me

Externí odkaz: https://explore.openaire.eu/search/publication?articleId=doi_________::597d4a3671c32e5bf7f3f6f562211d23

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Periodical

MODELLING EROSION AND DEPOSITION IN GEOPHYSICAL GRANULAR MASS FLOWS.

Autor: Viroulet, Sylvain, Johnson, Chris, Gray, Nico

Publikováno v: Europhysics News; Feb2021, Vol. 52 Issue 1, p29-32, 4p

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Underlying Asymmetry within Particle-size Segregation

Autor: Gajjar, Parmesh, van der Vaart, Kasper, Parmesh, Gajjar, Epely-Chauvin, Gael, Andreini, N, Gray, Nico, Ancey, Christophe

Publikováno v: Gajjar, P, van der Vaart, K, Parmesh, G, Epely-Chauvin, G, Andreini, N, Gray, N & Ancey, C 2015, ' Underlying Asymmetry within Particle-size Segregation ', Physical Review Letters, vol. 114, no. 23, 238001 . https://doi.org/10.1103/PhysRevLett.114.238001

We experimentally study particle scale dynamics during segregation of a bidisperse mixture under oscillatory shear. Large and small particles show an underlying asymmetry that is dependent on the local particle concentration, with small particles seg

Externí odkaz: https://explore.openaire.eu/search/publication?articleId=doi_dedup___::1f89b801787450fb7f40b42562aed08d
https://pure.manchester.ac.uk/ws/files/24232658/POST-PEER-REVIEW-PUBLISHERS.PDF

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SÃ©grÃ©gation par taille de particules dans les avalanches granulaires

Autor: Gajjar, Parmesh, Gray, Nico, Kokelaar, Peter

Particles of differing sizes are notoriously prone to segregate, which is a chronic problem in the manufacture of a wide variety of products that are used by billions of people worldwide every day. Segregation is the single most important factor in p

Externí odkaz: https://explore.openaire.eu/search/publication?articleId=od______2295::118ebba4c05a7c377e67fdc2f51d39a4

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Asymmetric flux models for particle-size segregation in granular avalanches

Autor: Gajjar, Parmesh, Gray, Nico, P. Gajjar and J. M. N. T Gray

Publikováno v: Gajjar, P & Gray, J MNT 2014, ' Asymmetric flux models for particle-size segregation in granular avalanches ', Journal of Fluid Mechanics, vol. 757, pp. 297-329 . https://doi.org/10.1017/jfm.2014.503

Particle-size segregation commonly occurs in both wet and dry granular free-surface flows through the combined processes of kinetic sieving and squeeze expulsion. As the granular material is sheared downslope, the particle matrix dilates slightly and

Externí odkaz: https://explore.openaire.eu/search/publication?articleId=doi_dedup___::2ea6c2c45d1596418240a5cab7fc4c26
https://www.research.manchester.ac.uk/portal/en/publications/asymmetric-flux-models-for-particlesize-segregation-in-granular-avalanches(78d03728-0c14-4ef5-9b8d-6193194366cb).html

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Asymmetry in Size-Segregation Rates

Autor: van der Vaart, Kasper, Gajjar, P., Epely chauvin, Gaël, Gray, Nico, Ancey, Christophe

We show experimentally and by comparison with theory that during particle size-segregation in a sheared granular flow large particles rise slower in regions of many small particles and small particles sink faster in regions of many large particles. B

Externí odkaz: https://explore.openaire.eu/search/publication?articleId=od_______185::9e36005065767d7d9907c7040bf65f03
https://infoscience.epfl.ch/record/203532

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Breaking Size-Segregation Waves in Granular Avalanches

Autor: van der Vaart, Kasper, Johnson, Chris G., Gajjar, Parmesh, Gray, Nico, Ancey, Christophe

We experimentally prove the existence of the theoretically predicted breaking size-segregation wave within a binary granular avalanche. This complex structure involves the recirculation of particles through a pattern of shocks and rarefaction waves,

Externí odkaz: https://explore.openaire.eu/search/publication?articleId=od_______185::e0e1143d0ec80340fb118abfcf427c29
https://infoscience.epfl.ch/record/203524

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Asymmetric Particle Behavior during Size Segregation

Autor: van der Vaart, Kasper, Gajjar, Parmesh, Gray, Nico, Ancey, Christophe

We have performed oscillatory shear experiments on a bidisperse granular mixture in combination with refractive index matched scanning in order to resolve particle motion in three-dimensions during size-segregation. We find that small particles segre

Externí odkaz: https://explore.openaire.eu/search/publication?articleId=od_______185::49cd94bdf0938d439b6f1a16088c8911
https://infoscience.epfl.ch/record/210246

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