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Turbulence structure in stably stratified open-channel flow
| Content Provider | Scilit |
|---|---|
| Author | Komori, Satoru Ueda, Hiromasa Ogino, Fumimaru Mizushina, Tokuro |
| Copyright Year | 1983 |
| Description | The effects of stable stratification on turbulence structure have been experimentally investigated in stratified open-channel flow and a theoretical spectral-equation model has been applied to the stably stratified flow. The measurements were made in the outer layer of open-channel flow with strongly stable density gradient, where the wall effect was small. Velocity and temperature fluctuations were simultaneously measured by a laser-Doppler velocimeter and a cold-film probe. Measurements include turbulent intensities, correlation coefficients of turbulent fluxes and coherence–phase relationships. These turbulent quantities were correlated with the local gradient Richardson number and compared with the values calculated using a spectral-equation model and with other laboratory measurements. In stable conditions, turbulent motions approach wavelike motions, and negative heat and momentum transfer against the mean temperature and velocity gradient occurs in strongly stable stratification. |
| Related Links | https://www.cambridge.org/core/services/aop-cambridge-core/content/view/74C716F46BB78899BC053ED6A0046F61/S0022112083000944a.pdf/div-class-title-turbulence-structure-in-stably-stratified-open-channel-flow-div.pdf |
| Ending Page | 26 |
| Page Count | 14 |
| Starting Page | 13 |
| ISSN | 00221120 |
| e-ISSN | 14697645 |
| DOI | 10.1017/s0022112083000944 |
| Journal | Journal of Fluid Mechanics |
| Issue Number | -1 |
| Volume Number | 130 |
| Language | English |
| Publisher | Cambridge University Press (CUP) |
| Publisher Date | 1983-05-01 |
| Access Restriction | Open |
| Subject Keyword | Journal of Fluid Mechanics Fluids and Plasmas Physics |
| Content Type | Text |
| Resource Type | Article |
| Subject | Applied Mathematics Mechanics of Materials Condensed Matter Physics Mechanical Engineering |
