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	2001
形態種別	外国学術誌（その他）
査読	査読あり
標題	Large eddy simulation of passive scalar in complex turbulence with flow impingement and flow separation
執筆形態	共著・編著（代表編著を除く）
掲載誌名	Heat Transfer - Asian Research
掲載区分	国外
巻・号・頁	30(5),pp.402-418
担当区分	最終著者
著者・共著者	Ken-Ichi Abe,Kazuhiko Suga
概要	In order to reveal unknown characteristics of complex turbulent passive scalar fields, large eddy simulations in forced convection regimes have been performed under several strain conditions, including flow impingement and flow separation. By using the simulation results, relations between the dynamic and scalar fields are carefully examined. It is then confirmed that the scalar is transported by a large vortex structure near the examined regions wherever the mean shear vanishes, although in the high-shear regions, the scalar transport is governed by a coherent structure due to the high-shear strain. In addition, a priori explorations are attempted by processing the data, focusing on the derivation of a possible direction for modeling algebraically the passive scalar transport in a complex strain field. The a priori tests suggest that an expanded form of the GGDH model introducing a quadratic product of the Reynolds stresses is promising for general flow cases.
DOI	10.1002/htj.1027
ISSN	1099-2871
Put Code(ORCID)	41807941
PermalinkURL	http://www.scopus.com/inward/record.url?eid=2-s2.0-0035393616&partnerID=MN8TOARS
researchmap用URL	http://orcid.org/0000-0001-9313-1816