Effect of friction on pebble flow pattern in pebble bed reactor
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- 作者：Yu Lia ; Nan Guia ; Xingtuan Yanga ; Jiyuan Tua ; b ; Shengyao Jianga ; shengyaojiang@sina.com" class="auth_mail" title="E-mail the corresponding author
- 关键词：Friction ; Flow pattern ; Pebble bed reactor ; HTGR ; Discrete element method
- 刊名：Annals of Nuclear Energy
- 出版年：2016
- 出版时间：August 2016
- 年：2016
- 卷：94
- 期：Complete
- 页码：32-43
- 全文大小：4409 K
文摘
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A 3D DEM study on particle–wall/particle friction in pebble bed reactor is carried out.
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Characteristic values are defined to evaluate features of pebble flow pattern quantitatively.
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Particle–wall friction is dominant to determine flow pattern in a specific pebble bed.
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Friction effect of hopper part on flow field is more critical than that of cylinder part.
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Three cases of 1:1 full scale practical pebble beds are simulated for demonstration.