Kenya Kuwagi
Okayama University of Science
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Featured researches published by Kenya Kuwagi.
Chemical Engineering Science | 2002
Kenya Kuwagi; Masayuki Horio
Abstract Two-dimensional (2D) DEM simulation was conducted to investigate the mechanism of agglomeration in a fluidized bed of cohesive fine particles. For the present simulation, granules were numerically generated from Geldart group C particles starting from initial agglomerates of an intermediate size. Particle pressure and agglomerate sizes were measured numerically. The behavior of agglomerates around a bubble were tracked in detail. Breakage of agglomerates above a bubble as assumed in the development of the Iwadate and Horio (Powder Technol. 100 (1998a) 223) model (I–H model) was numerically confirmed. Spots of high in-bed compression force, where agglomerate growth is supposed to take place, was clearly observed in the wake region below each bubble. Numerical results for agglomerate sizes compared fairly well with those predicted by the I–H model redeveloped for 2D cases to validate its mechanistic picture for agglomerate size determination.
Numerical Heat Transfer Part A-applications | 2009
Kenya Kuwagi; M. A. Mokhtar; H. Okada; Hiroyuki Hirano; Toshihiro Takami
Numerical simulations using the discrete element method with similar particle assembly model are performed for the surface modification process of thermoset particles. In the simulations, the cohesive force between particles and the effect of thermophoresis are examined numerically in a particle dispersion system. Simulations are also carried out for different gas dispersion velocities. By varying the dimensionless parameter associated with the cohesive force, average agglomerate diameter increases as the cohesive force between particles increases. To the end, it is demonstrated that the cohesive force between particles can be quantitatively determined if the average agglomerate diameter is experimentally or numerically obtained.
Aiche Journal | 2012
M. A. Mokhtar; Kenya Kuwagi; Toshihiro Takami; Hiroyuki Hirano; Masayuki Horio
Chemical Engineering Science | 2014
Kenya Kuwagi; Atsuto Kogane; Hiroyuki Hirano; Azri Bin Alias; Toshihiro Takami
Journal of Chemical Engineering of Japan | 2012
Kenya Kuwagi; Yu Shimoyama; Azri Bin Alias; Hiroyuki Hirano; Toshihiro Takami
Archive | 2007
Kenya Kuwagi; Muhammad Arif Bin Mokhtar; Toshihiro Takami; Masayuki Horio
Journal of Chemical Engineering of Japan | 2016
Kenya Kuwagi; Toshihiro Takami; Degang Rong; Hiroshi Takeda; Shinichiro Yanase; Toshinori Kouchi; Toru Hyakutake; Kaoru Yokoyama; Yoshiyuki Ohara; Nobuo Takahashi; Noritake Sugitsue
Journal of Terramechanics | 2015
Tetsuya Kinugasa; Kenya Kuwagi; Thomas Leadbeater; Joseph Gargiuli; D.J. Parker; Jonathan Seville; Koji Yoshida; Hisanori Amano
Archive | 2010
Kenya Kuwagi; H. Utsunomiya; Yu Shimoyama; Hiroyuki Hirano; Toshihiro Takami
The proceedings of the JSME annual meeting | 2002
Kenya Kuwagi; Hiroshi Takeda; Masayuki Horio