Abstract
This paper describe the computational modeling of sediment transport under turbulent flow regime. The aim is to calculate the average saltation length, height and speed of sediment in the bed-load sediment transport. The sediment transport is calculated in a Lagrangian framework under turbulent flow, which is simulated by a detailed three-dimensional hydraulic model developed by Nabi et al. (2012). The hydraulic model is based on Large Eddy Simulation (LES) techniques using Cartesian grids with local refining. The sediment is considered as sphere particles and the forces are derived from the flow field. The sediment pick-up, transport, sliding and deposition models proposed by Nabi (2012) are applied. The results show that the saltation length is a function of sediment diameter and local bed shear stress. The results are compared with the previous experimental studies and a good agreement is found.
| Original language | English |
|---|---|
| Title of host publication | Advances in River Sediment Research |
| Publisher | CRC Press |
| Pages | 63a-63a |
| ISBN (Electronic) | 9781315856582 |
| ISBN (Print) | 9781138000629 |
| State | Published - 2013/08/15 |
ASJC Scopus subject areas
- General Engineering