Stochastic Aspects of Granular Flow in Vibrated Beds
A stochastic approach has been taken to examine the flow behaviour of particles in a vibrated granular bed. The coordinates of a single grain were determined as a function of time using the technique of positron emission particle tracking. Fol...
| Main Authors: | , |
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| Format: | Article |
| Language: | English |
| Published: |
Hosokawa Powder Technology Foundation
2014-03-01
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| Series: | KONA Powder and Particle Journal |
| Online Access: | https://www.jstage.jst.go.jp/article/kona/20/0/20_2002013/_pdf/-char/en |
| _version_ | 1818967237210406912 |
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| author | Ricky Wildman Jonathan Huntley |
| author_facet | Ricky Wildman Jonathan Huntley |
| author_sort | Ricky Wildman |
| collection | DOAJ |
| description | A stochastic approach has been taken to examine the flow behaviour of particles in a vibrated granular bed. The coordinates of a single grain were determined as a function of time using the technique of positron emission particle tracking. Following a particle for extended periods allowed a detailed representation of the displacement probability density to be built up. This showed that, initially, particles dispersed according to a Gaussian law, but that the variation in the solid fraction of grains, their granular temperature and the presence of walls meant that significant distortions were observed over longer timescales. The determination of the displacement probability density allowed the spatial distribution of the granular temperature and the diffusion coefficient to be measured in both mono- and bi-disperse granular systems. |
| first_indexed | 2024-12-20T13:45:36Z |
| format | Article |
| id | doaj.art-afd9eca8c0a343a2b11fd1652faddef9 |
| institution | Directory Open Access Journal |
| issn | 0288-4534 2187-5537 |
| language | English |
| last_indexed | 2024-12-20T13:45:36Z |
| publishDate | 2014-03-01 |
| publisher | Hosokawa Powder Technology Foundation |
| record_format | Article |
| series | KONA Powder and Particle Journal |
| spelling | doaj.art-afd9eca8c0a343a2b11fd1652faddef92022-12-21T19:38:41ZengHosokawa Powder Technology FoundationKONA Powder and Particle Journal0288-45342187-55372014-03-0120010511410.14356/kona.2002013konaStochastic Aspects of Granular Flow in Vibrated BedsRicky Wildman0Jonathan Huntley1Wolfson School of Mechanical and Manufacturing Engineering Loughborough UniversityWolfson School of Mechanical and Manufacturing Engineering Loughborough UniversityA stochastic approach has been taken to examine the flow behaviour of particles in a vibrated granular bed. The coordinates of a single grain were determined as a function of time using the technique of positron emission particle tracking. Following a particle for extended periods allowed a detailed representation of the displacement probability density to be built up. This showed that, initially, particles dispersed according to a Gaussian law, but that the variation in the solid fraction of grains, their granular temperature and the presence of walls meant that significant distortions were observed over longer timescales. The determination of the displacement probability density allowed the spatial distribution of the granular temperature and the diffusion coefficient to be measured in both mono- and bi-disperse granular systems.https://www.jstage.jst.go.jp/article/kona/20/0/20_2002013/_pdf/-char/en |
| spellingShingle | Ricky Wildman Jonathan Huntley Stochastic Aspects of Granular Flow in Vibrated Beds KONA Powder and Particle Journal |
| title | Stochastic Aspects of Granular Flow in Vibrated Beds |
| title_full | Stochastic Aspects of Granular Flow in Vibrated Beds |
| title_fullStr | Stochastic Aspects of Granular Flow in Vibrated Beds |
| title_full_unstemmed | Stochastic Aspects of Granular Flow in Vibrated Beds |
| title_short | Stochastic Aspects of Granular Flow in Vibrated Beds |
| title_sort | stochastic aspects of granular flow in vibrated beds |
| url | https://www.jstage.jst.go.jp/article/kona/20/0/20_2002013/_pdf/-char/en |
| work_keys_str_mv | AT rickywildman stochasticaspectsofgranularflowinvibratedbeds AT jonathanhuntley stochasticaspectsofgranularflowinvibratedbeds |