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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 |
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| 言語種別 | 英語 |
| 発行・発表の年月 | 2010/12 |
| 形態種別 | 外国学術誌（First author） |
| 査読 | 査読あり |
| 標題 | Effects of wall permeability on turbulence |
| 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 | 31(6),pp.974-984 |
| 担当区分 | 筆頭著者,責任著者 |
| 著者・共著者 | K. Suga,Y. Matsumura,Y. Ashitaka,S. Tominaga,M. Kaneda |
| 概要 | In order to understand the effects of the wall permeability on turbulence near a porous wall flow field measurements are carried out for turbulent flows in a channel with a porous bottom wall by a two-component particle image velocimetry (PIV) system The porous media used are three kinds of foamed ceramics which have almost the same porosity (similar to 0 8) but different permeability It is confirmed that the flow becomes more turbulent over the porous wall and tends to be turbulent even at the bulk Reynolds number of Re(b) = 1300 in the most permeable wall case tested Corresponding to laminar to turbulent transition the magnitude of the slip velocity on the porous wall is found to increase drastically in a narrow range of the Reynolds number To discuss the effects of the wall roughness and the wall permeability detailed discussions are made of zero-plane displacement and equivalent wall roughness for porous media |
| DOI | 10.1016/j.ijheatfluidflow.2010.02.023 |
| ISSN | 0142-727X |
| Put Code(ORCID) | 41807948 |
| PermalinkURL | http://www.scopus.com/inward/record.url?eid=2-s2.0-78449280167&partnerID=MN8TOARS |
| researchmap用URL | http://orcid.org/0000-0001-9313-1816 |