WEKO3
アイテム
亂れの最小亂子について
https://jaxa.repo.nii.ac.jp/records/34234
https://jaxa.repo.nii.ac.jp/records/342342282ff5a-7e32-4d30-a62f-3439475c59d5
| 名前 / ファイル | ライセンス | アクション |
|---|---|---|
SA1511487.pdf (678.0 kB)
|
|
| Item type | 紀要論文 / Departmental Bulletin Paper(1) | |||||||||
|---|---|---|---|---|---|---|---|---|---|---|
| 公開日 | 2015-03-26 | |||||||||
| タイトル | ||||||||||
| タイトル | 亂れの最小亂子について | |||||||||
| 言語 | ||||||||||
| 言語 | jpn | |||||||||
| 資源タイプ | ||||||||||
| 資源タイプ識別子 | http://purl.org/coar/resource_type/c_6501 | |||||||||
| 資源タイプ | departmental bulletin paper | |||||||||
| その他のタイトル（英） | ||||||||||
| その他のタイトル | On the Smallest Turbulon in a Turbulent Fluid | |||||||||
| 著者 |
井上, 榮一
× 井上, 榮一
× Inoue, Eiichi
|
|||||||||
| 著者所属 | ||||||||||
| 東京大学理工学研究所 | ||||||||||
| 著者所属（英） | ||||||||||
| en | ||||||||||
| THE INSTITUTE OF SCIENCE AND TECHNOLOGY, UNIVERSITY OF TOKYO | ||||||||||
| 出版者 | ||||||||||
| 出版者 | 東京大学理工学研究所 | |||||||||
| 書誌情報 |
東京大學理工學研究所報告 巻 4, 号 7/8, p. 194-200, 発行日 1951-03-15 |
|||||||||
| 抄録（英） | ||||||||||
| 内容記述タイプ | Other | |||||||||
| 内容記述 | The tern of turbulon is used in this paper as the turbulent element in a fluid, which is correspondent to Weizsacker's "Tubulenzelememte". The author intends to make clear the essential differences between the concept of the smallest turbulon in the recent similarity theory of turbulence and that of the smallest eddy to the earlier theories. Making use of the concept of the turbulent viscosity K and putting certain limits of applicability to that concept, the author obtains the characteristic scale and velocity of the smallest turbulon as Λ_∞～ν^<3/4>ε^<-1/4>, V_∞～ν^<1/4>ε^<1/4>, where ε means the turbulent dissipation rate of turbulon energy. For velocity fluctuations with smaller scales than Λ_∞, assuming the mechanism of the laminar dissipation the negative third power law of spectrum is obtained. This negative third power law is found in good agreement with Simmons' and Salter's experiments. The several relationships between Λ_∞ and Taylor's smallest eddies λ_μ and λ are shown in terms of K. And making use of the general characteristics of K in a wind tunnel, relationships between these lengths and the mean wind velocity U are obtained. In particular, the ratio λ_μ / λ is shown to be by no means a costant quantity but to change in proportion to U^<1/4>. Some considerations concerning the possibility of direct measurements of the smallest turbulon are discussed with respect to the concept of coherence force of turbulon which is shown to be maximum for the smallest turbulon | |||||||||
| ISSN | ||||||||||
| 収録物識別子タイプ | ISSN | |||||||||
| 収録物識別子 | 0371-6090 | |||||||||
| 書誌レコードID | ||||||||||
| 収録物識別子タイプ | NCID | |||||||||
| 収録物識別子 | AN00162611 | |||||||||
| 資料番号 | ||||||||||
| 内容記述タイプ | Other | |||||||||
| 内容記述 | 資料番号: SA1511487000 | |||||||||
