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	2014/11
形態種別	外国学術誌（その他）
査読	査読あり
標題	Ghost-fluid-based boundary treatment in lattice Boltzmann method and its extension to advancing boundary
執筆形態	共著・編著（代表編著を除く）
掲載誌名	APPLIED THERMAL ENGINEERING
掲載区分	国外
出版社・発行元	PERGAMON-ELSEVIER SCIENCE LTD
巻・号・頁	72(1),pp.126-134
担当区分	最終著者
著者・共著者	Masayuki Kaneda,Toshihiro Haruna,Kazuhiko Suga
概要	A ghost-fluid-based boundary treatment in lattice Boltzmann method (GF-LBM) is extended for the multi-relaxation-time LBM and further discussed with validation. It is found that, in case of stationary and sliding boundary such as Taylor-Couette flow, this treatment is superior to other bounce-back-based treatment. However, a defect in the density conservativeness is found due to the prediction of the density at image point under a non-penetration condition. Authors improve the treatment by using the normal moment relation followed by the validation. Next, the treatment is extended to other moving boundary problem such that the boundary advances with stepping over the computational grids, It is found that, this treatment is comparable to the second-order interpolated bounce-back scheme, and its precision depends on node numbers considered in each treatment. GF treatment is found to have high precision especially at curved boundary in motion.
DOI	10.1016/j.applthermaleng.2013.12.024
ISSN	1359-4311
Put Code(ORCID)	41807931
PermalinkURL	http://www.scopus.com/inward/record.url?eid=2-s2.0-84927805949&partnerID=MN8TOARS
researchmap用URL	http://orcid.org/0000-0001-9313-1816