EXPERIMENTAL STUDY ON TURBULENT STRUCTURES IN UNSTEADY OPEN-CHANNEL FLOWS
-
- Nezu Iehisa
- JAPAN SOCIETY OF CIVIL ENGINEERS
-
- Kadota Akihiro
- JAPAN SOCIETY OF CIVIL ENGINEERS
-
- Nakagawa Hiroji
- JAPAN SOCIETY OF CIVIL ENGINEERS
Bibliographic Information
- Other Title
-
- 非定常開水路流れの乱流構造に関する実験的研究
- ヒテイジョウ カイスイロ ナガレ ノ ランリュウ コウゾウ ニ カンスル ジッ
Search this article
Abstract
The various coherent structures, such as kolk-boil vortices and the streaky structures, are often observed in the flood rivers and estuaries. The behavior of these structures is quite different between the rising and falling stages of the flood period. The unsteadiness effects of flood flows cause the these difference of turbulence. Therefore, it is important to investigate the turbulent structures in unsteady open-channel flows. In this study, the turbulent structures over smooth and rough beds were accurately measured by making use of LDA in unsteady open-channel flows. The unsteadiness effects upon the structures, mean velocity distribution, bed shear stress and turbulence characteristics and also the effect of secondary currents on them, were examined theoretically and experimentally.
Journal
-
- Doboku Gakkai Ronbunshu
-
Doboku Gakkai Ronbunshu 1994 (491), 81-88, 1994-05-21
Japan Society of Civil Engineers
- Tweet
Details 詳細情報について
-
- CRID
- 1390282680286246528
-
- NII Article ID
- 130003981999
-
- NII Book ID
- AN10014020
-
- ISSN
- 18827187
- 02897806
-
- NDL BIB ID
- 3876600
-
- Data Source
-
- JaLC
- NDL
- Crossref
- CiNii Articles
-
- Abstract License Flag
- Disallowed