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Interaction between Fluid and Sediment in Open-channel Flows with Bed-load Transport
| Content Provider | Semantic Scholar |
|---|---|
| Author | Nezu, I. Onitsuka, Kouki Azuma, Ryoukei |
| Copyright Year | 2001 |
| Abstract | Mean flow properties and turbulent characteristics in open channel flows are affected by the bed load motion. In this study, interactions between fluid fluctuations and sediment transport were investigated. Behavior of fluid and sand particles was measured with a laser Doppler anemometer. It could be conducted to separate fluid and sand particle motions by using of the amplitude of Doppler burst signals in an LDA system. In the bed-load layer, the Reynolds stress of fluid was decreased and that of sand was generated by the interaction between fluid and sand motions. It was found that the high momentum is transferred downward by the dropping particles, because the contribution rate to the Reynolds stress of the sweep is larger than that of ejection. |
| Starting Page | 643 |
| Ending Page | 648 |
| Page Count | 6 |
| File Format | PDF HTM / HTML |
| DOI | 10.2208/prohe.45.643 |
| Volume Number | 45 |
| Alternate Webpage(s) | https://www.jstage.jst.go.jp/article/prohe1990/45/0/45_0_643/_pdf |
| Alternate Webpage(s) | https://doi.org/10.2208/prohe.45.643 |
| Language | English |
| Access Restriction | Open |
| Content Type | Text |
| Resource Type | Article |
