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	2011
形態種別	外国学会誌（その他）
査読	査読あり
標題	Flow characteristics in turbulent separating and reattaching flows over permeable porous walls
執筆形態	共著・編著（代表編著を除く）
掲載誌名	7th International Symposium on Turbulence and Shear Flow Phenomena, TSFP 2011
掲載区分	国外
出版社・発行元	Begell House
巻・号・頁	2011-
担当区分	最終著者,責任著者
著者・共著者	S. Tominaga,M. Mori,M. Kaneda,K. Suga
概要	PIV measurements have been performed for turbulent flows in a rib-mounted channel whose bottom wall is made of a porous layer. The effects of the wall and rib permeability are investigated focusing on the separating and reattaching flows. Three kinds of porous media are employed. They have the same porosity of 0.8 but each permeability is different from the others. Two kinds of square cylinder ribs: an impermeable smooth solid rib or a permeable porous rib which is made of the same porous medium as that for the bottom wall are used. The obtained mean velocity profiles of the solid rib flows suggest that the reverse flow in the recirculation behind the rib becomes weak as the increase of the wall permeability.