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	2014/10
形態種別	外国学術誌（その他）
査読	査読あり
標題	Turbulent heat transfer in a two-pass cooling channel by several wall turbulence models
執筆形態	共著・編著（代表編著を除く）
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	77,pp.406-418
担当区分	最終著者,責任著者
著者・共著者	R. S. Amano,H. Arakawa,K. Suga
概要	This study presents a computational study of turbulent heat transfer through two-pass square-duct channel flows with several different turbulence models that were developed to improve near-wall predictions. To evaluate the performance of the advanced wall function (the analytical wall-function: AWF), the results were compared with experimental data, those by a low-Reynolds-number k-epsilon model and a conventional wall function (the log-low based wall-function: LWF). The LWF showed much lower Nusselt number levels in complex turbulent flow regions such as separation and reattachment zones, because the log-low employed in the model is impossible in such regions. On the other hand, the AWF proved its better performance over the LWF in the width of Reynolds number flow range. In addition, the extended forms of the AWF also showed improvements in the heat transfer predictions.
DOI	10.1016/j.ijheatmasstransfer.2014.04.066
ISSN	0017-9310/1879-2189
Put Code(ORCID)	41807875
PermalinkURL	http://www.scopus.com/inward/record.url?eid=2-s2.0-84902329093&partnerID=MN8TOARS
researchmap用URL	http://orcid.org/0000-0001-9313-1816