TABLE 1.
Characterization of the near-bed hydrodynamics in the control flume (without bedforms) and above bedforms successively increasing in height
| Height (cm) of bedform | Mean ± SD (n = 80) |
|||
|---|---|---|---|---|
| Depth (cm) | Rxyz (cm s−1)a | Turbulence intensity (%) | Turbulent kinetic energy (J) | |
| Control (no bedform) | 6.3 ± 0.3 | 7.9 ± 1.6 | 41.9 ± 32.5 | 2.0 ± 0.6 |
| 2 | 6.5 ± 0.8 | 8.0 ± 1.9 | 41.8 ± 38.7 | 2.0 ± 0.9 |
| 4 | 7.5 ± 1.4 | 6.8 ± 2.5 | 48.6 ± 43.7 | 1.7 ± 1.0 |
| 6 | 6.9 ± 1.8 | 8.5 ± 3.5 | 50.0 ± 42.7 | 2.7 ± 1.9 |
| 8 | 6.5 ± 2.1 | 8.6 ± 4.1 | 50.1 ± 44.6 | 2.6 ± 2.0 |
| 10 | 6.7 ± 2.8 | 12.6 ± 6.3 | 50.2 ± 41.1 | 6.6 ± 7.1 |
a
Rxyz, three-dimensional vector of flow velocity.