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	2013/06
形態種別	外国学術誌（First author）
査読	査読あり
標題	An analytical wall-function for recirculating and impinging turbulent heat transfer
執筆形態	共著・編著（代表編著を除く）
掲載誌名	INTERNATIONAL JOURNAL OF HEAT AND FLUID FLOW
掲載区分	国外
出版社・発行元	ELSEVIER SCIENCE INC
巻・号・頁	41,pp.45-54
担当区分	筆頭著者,責任著者
著者・共著者	K. Suga,Y. Ishibashi,Y. Kuwata
概要	The performance of the analytical wall-function (AWF) is improved for predicting turbulent heat transfer in recirculating and impinging flows. Since constant parameters of the eddy viscosity formula were used to derive the AWF, the prediction accuracy of the original AWF tends to deteriorate in complex flows where those parameters need changing according to the local turbulence. To overcome such shortcomings, the present study introduces a functional behaviour on the strain parameter into the coefficient of the eddy viscosity of the AWF. The presently modified version of the AWF is validated in turbulent heat transfer of pipe flows, channel flows, back-step flows, pipe flows with abrupt expansion and plane impinging slot jets. The results confirm that the present modification successfully improves the performance of the original AWF for all the flows and heat transfer tested.
DOI	10.1016/j.ijheatfluidflow.2013.02.002
ISSN	0142-727X
Put Code(ORCID)	41807944
PermalinkURL	http://www.scopus.com/inward/record.url?eid=2-s2.0-84878593113&partnerID=MN8TOARS
researchmap用URL	http://orcid.org/0000-0001-9313-1816