Abstract
The spatial heterogeneity of fully turbulent, near-bed flows above gravel river beds is examined using a realistic replica of a natural gravel patch in a large flume. Three-dimensional velocity time series were obtained at four heights (0.008 - 0.1 m) above the local bed in each of 99 closely spaced verticals for three flows of increasing intensity. The spatial heterogeneity of time-averaged velocities and root-mean-square velocity fluctuations increases under stronger flows and closer to the bed.
| Original language | English |
|---|---|
| Pages (from-to) | 1 - 12 |
| Number of pages | 12 |
| Journal | Water Resources Research |
| Volume | 42 |
| Issue number | 4 |
| Publication status | Published - 2006 |
| Externally published | Yes |