スガ　カズヒコ   Kazuhiko Suga   須賀　一彦    所属   追手門学院大学  理工学部 機械工学科    職種   教授
言語種別	英語
発行・発表の年月	2016/04
形態種別	外国学術誌（その他）
査読	査読あり
標題	Imbalance-correction grid-refinement method for lattice Boltzmann flow simulations
執筆形態	共著・編著（代表編著を除く）
掲載誌名	JOURNAL OF COMPUTATIONAL PHYSICS
掲載区分	国外
出版社・発行元	ACADEMIC PRESS INC ELSEVIER SCIENCE
巻・号・頁	311,pp.348-362
担当区分	最終著者,責任著者
著者・共著者	Y. Kuwata,K. Suga
概要	To enhance the accuracy and applicability of the zonal grid refinement method for the lattice Boltzmann method, a new method which minimizes the interface imbalances of mass and momentum is developed. This method introduces a correction step for the macroscopic flow variables such as the fluid density and velocity to remove their interface discontinuity. To demonstrate and evaluate the presently developed imbalance correction grid refinement method, large eddy simulations of turbulent channel and square cylinder flows are carried out. By changing the grid arrangement in the turbulent channel flows, it is confirmed that the present method reduces the sensitivity to the location of the grid refinement interface and minimizes the unphysically discontinuous profiles satisfactorily.
DOI	10.1016/j.jcp.2016.02.008
ISSN	0021-9991/1090-2716
Put Code(ORCID)	22148311
PermalinkURL	http://orcid.org/0000-0001-9313-1816