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Three-dimensional numerical simulation of quasi-static pebble flow

X.M. Sun, Y.J. Dong, P.F. Hao, L. Shi, F. Li, Y.T. Feng, Yuntian Feng Orcid Logo

Advanced Powder Technology, Volume: 28, Issue: 2, Pages: 499 - 505

Swansea University Author: Yuntian Feng Orcid Logo

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DOI (Published version): 10.1016/j.apt.2016.11.007

Abstract

To investigate the influence of the drainage rate and the particle contact model on the main features of the pebble flow, a quasi-static pebble flow of full scale German HTR-MODUL pebble bed is performed with up to 360,000 frictional graphite spheres. The treatment of the sphere-wall boundary condit...

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Published in: Advanced Powder Technology
ISSN: 0921-8831
Published: 2017
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URI: https://cronfa.swan.ac.uk/Record/cronfa31108
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first_indexed 2016-11-16T14:14:40Z
last_indexed 2018-02-09T05:17:41Z
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spelling 2017-05-16T13:50:37.5806664 v2 31108 2016-11-16 Three-dimensional numerical simulation of quasi-static pebble flow d66794f9c1357969a5badf654f960275 0000-0002-6396-8698 Yuntian Feng Yuntian Feng true false 2016-11-16 CIVL To investigate the influence of the drainage rate and the particle contact model on the main features of the pebble flow, a quasi-static pebble flow of full scale German HTR-MODUL pebble bed is performed with up to 360,000 frictional graphite spheres. The treatment of the sphere-wall boundary condition is analyzed to avoid underestimating the friction of pebble near the wall. The streamlines, diffusion of pebbles and velocity profiles of pebble flow are drawn and analyzed. It shows that the streamlines and diffusion of pebbles inside the pebble bed are barely affected by the drainage rate and the particle contact model used. However, it reveals that the drainage rate and the contact model obviously influence the pattern of velocity profiles. It demonstrates that the quasi-static pebble flow and the Hertzian model are optimal choices of the neutronic physical design of the pebble bed reactor when the residue time of pebbles is particularly concerned. Journal Article Advanced Powder Technology 28 2 499 505 0921-8831 31 12 2017 2017-12-31 10.1016/j.apt.2016.11.007 COLLEGE NANME Civil Engineering COLLEGE CODE CIVL Swansea University 2017-05-16T13:50:37.5806664 2016-11-16T10:20:34.8505691 Faculty of Science and Engineering School of Aerospace, Civil, Electrical, General and Mechanical Engineering - Civil Engineering X.M. Sun 1 Y.J. Dong 2 P.F. Hao 3 L. Shi 4 F. Li 5 Y.T. Feng 6 Yuntian Feng 0000-0002-6396-8698 7 0031108-16112016102325.pdf sun2016.pdf 2016-11-16T10:23:25.0030000 Output 981194 application/pdf Accepted Manuscript true 2017-11-24T00:00:00.0000000 false
title Three-dimensional numerical simulation of quasi-static pebble flow
spellingShingle Three-dimensional numerical simulation of quasi-static pebble flow
Yuntian Feng
title_short Three-dimensional numerical simulation of quasi-static pebble flow
title_full Three-dimensional numerical simulation of quasi-static pebble flow
title_fullStr Three-dimensional numerical simulation of quasi-static pebble flow
title_full_unstemmed Three-dimensional numerical simulation of quasi-static pebble flow
title_sort Three-dimensional numerical simulation of quasi-static pebble flow
author_id_str_mv d66794f9c1357969a5badf654f960275
author_id_fullname_str_mv d66794f9c1357969a5badf654f960275_***_Yuntian Feng
author Yuntian Feng
author2 X.M. Sun
Y.J. Dong
P.F. Hao
L. Shi
F. Li
Y.T. Feng
Yuntian Feng
format Journal article
container_title Advanced Powder Technology
container_volume 28
container_issue 2
container_start_page 499
publishDate 2017
institution Swansea University
issn 0921-8831
doi_str_mv 10.1016/j.apt.2016.11.007
college_str Faculty of Science and Engineering
hierarchytype
hierarchy_top_id facultyofscienceandengineering
hierarchy_top_title Faculty of Science and Engineering
hierarchy_parent_id facultyofscienceandengineering
hierarchy_parent_title Faculty of Science and Engineering
department_str School of Aerospace, Civil, Electrical, General and Mechanical Engineering - Civil Engineering{{{_:::_}}}Faculty of Science and Engineering{{{_:::_}}}School of Aerospace, Civil, Electrical, General and Mechanical Engineering - Civil Engineering
document_store_str 1
active_str 0
description To investigate the influence of the drainage rate and the particle contact model on the main features of the pebble flow, a quasi-static pebble flow of full scale German HTR-MODUL pebble bed is performed with up to 360,000 frictional graphite spheres. The treatment of the sphere-wall boundary condition is analyzed to avoid underestimating the friction of pebble near the wall. The streamlines, diffusion of pebbles and velocity profiles of pebble flow are drawn and analyzed. It shows that the streamlines and diffusion of pebbles inside the pebble bed are barely affected by the drainage rate and the particle contact model used. However, it reveals that the drainage rate and the contact model obviously influence the pattern of velocity profiles. It demonstrates that the quasi-static pebble flow and the Hertzian model are optimal choices of the neutronic physical design of the pebble bed reactor when the residue time of pebbles is particularly concerned.
published_date 2017-12-31T03:37:57Z
_version_ 1763751679845466112
score 11.013799

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