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	2000/02
形態種別	外国学術誌（First author）
査読	査読あり
標題	Nonlinear eddy viscosity modelling for turbulence and heat transfer near wall and shear-free boundaries
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	21(1),pp.37-48
担当区分	筆頭著者,責任著者
著者・共著者	K Suga,K Abe
概要	New turbulence and turbulent heat flux models are proposed for capturing flow and thermal fields bounded by walls or free surfaces. The models are constructed using locally definable quantities only, without any recourse to topographical parameters. For the flow field, the proposed model is a cubic nonlinear k-epsilon-A three equation eddy viscosity model. It employs dependence on Lumley's stress flatness parameter A, by solving its modelled transport equation as the third variable. Since A vanishes at two-component turbulence boundaries, introducing its dependency enables a turbulence model to capture the structure of turbulence near shear-free surfaces as well as wall boundaries. To close the modelled A equation, an up-to-date second-moment closure is applied. For the thermal held, an explicit algebraic second-moment closure for turbulent heat flux is proposed.
DOI	10.1016/S0142-727X(99)00060-0
ISSN	0142-727X
Put Code(ORCID)	41807946
PermalinkURL	http://www.scopus.com/inward/record.url?eid=2-s2.0-0034125469&partnerID=MN8TOARS
researchmap用URL	http://orcid.org/0000-0001-9313-1816