TY - JOUR
T1 - An investigation on debris bed self-leveling behavior with non-spherical particles
AU - Cheng, Songbai
AU - Tagami, Hirotaka
AU - Yamano, Hidemasa
AU - Suzuki, Tohru
AU - Tobita, Yoshiharu
AU - Taketa, Syohei
AU - Nishi, Sinpei
AU - Nishikido, Tatsuya
AU - Zhang, Bin
AU - Matsumoto, Tatsuya
AU - Morita, Koji
N1 - Funding Information:
This collaborative study was carried out with support from a LSU project funded by Korea Forest Research Institute, ‘Forest Science & Technology Projects (No. S211314L010140)’ provided by the Korea Forest Service, Natural Science Foundation of China (No.31300482), and the Natural Science Foundation of Jiangsu Province (No. BK20130966).
PY - 2014/9/2
Y1 - 2014/9/2
N2 - Studies on debris bed self-leveling behavior with non-spherical particles are crucial in the assessment of actual leveling behavior that could occur in core disruptive accident of sodium-cooled fast reactors. Although in our previous publications, a simple empirical model (based model), with its wide applicability confirmed over various experimental conditions, has been successfully advanced to predict the transient leveling behavior, up until now this model is restricted to calculations of debris bed of spherical particles. Focusing on this aspect, in this study a series of experiments using non-spherical particles was performed within a recently developed comparatively larger scale experimental facility. Based on the knowledge and data obtained, an extension scheme was suggested with the intention to extend the base model to cover the particle-shape influence. The proposed scheme principally consists of two parts-with one part for correcting the terminal velocity of a single non-spherical particle, which is the key parameter in our base model, and the other for representing the additional particle-particle interactions caused by the shape-related parameters. Through detailed analyses, it is found that by coupling this scheme, good agreement between experimental and predicted results can be achieved for both spherical and non-spherical particles given current range of experimental conditions.
AB - Studies on debris bed self-leveling behavior with non-spherical particles are crucial in the assessment of actual leveling behavior that could occur in core disruptive accident of sodium-cooled fast reactors. Although in our previous publications, a simple empirical model (based model), with its wide applicability confirmed over various experimental conditions, has been successfully advanced to predict the transient leveling behavior, up until now this model is restricted to calculations of debris bed of spherical particles. Focusing on this aspect, in this study a series of experiments using non-spherical particles was performed within a recently developed comparatively larger scale experimental facility. Based on the knowledge and data obtained, an extension scheme was suggested with the intention to extend the base model to cover the particle-shape influence. The proposed scheme principally consists of two parts-with one part for correcting the terminal velocity of a single non-spherical particle, which is the key parameter in our base model, and the other for representing the additional particle-particle interactions caused by the shape-related parameters. Through detailed analyses, it is found that by coupling this scheme, good agreement between experimental and predicted results can be achieved for both spherical and non-spherical particles given current range of experimental conditions.
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U2 - 10.1080/00223131.2014.910478
DO - 10.1080/00223131.2014.910478
M3 - Article
AN - SCOPUS:84903548550
VL - 51
SP - 1096
EP - 1106
JO - Journal of Nuclear Science and Technology
JF - Journal of Nuclear Science and Technology
SN - 0022-3131
IS - 9
ER -