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	2003/01
形態種別	外国学術誌（First author）
査読	査読あり
標題	Predicting turbulence and heat transfer in 3-D curved ducts by near-wall second moment closures
執筆形態	単著
掲載誌名	INTERNATIONAL JOURNAL OF HEAT AND MASS TRANSFER
掲載区分	国外
出版社・発行元	PERGAMON-ELSEVIER SCIENCE LTD
巻・号・頁	46(1),pp.161-173
担当区分	筆頭著者,責任著者
著者・共著者	K Suga
概要	This paper presents discussions on predicting turbulence and heat transfer in two types of square sectioned U-bend duct flows with mild and strong curvature by recent second moment closures. Batten et al.'s modified version of Craft and Launder's two-component-limit (TCL) turbulence model and Shima's [Int. J. Heat Fluid Flow 19 (1998) 549] wall-reflection free model are presently focused on. They are low-Reynolds-number models totally free from geometrical parameters. The former model is realizable and called the TCL model. For turbulent heat flux, a higher order version of the generalized gradient diffusion hypothesis by Suga and Abe is applied along with the TCL model. The results suggest that although both second moment closures are generally good enough for predicting flow and heat transfer in the case of mild curvature, only the realizable TCL model is reliable in the strong curvature case. (C) 2002 Elsevier Science Ltd. All rights reserved.
DOI	10.1016/S0017-9310(02)00249-1
ISSN	0017-9310
Put Code(ORCID)	41807870
PermalinkURL	http://www.scopus.com/inward/record.url?eid=2-s2.0-0012446666&partnerID=MN8TOARS
researchmap用URL	http://orcid.org/0000-0001-9313-1816