Abstract
The present paper introduces a numerical model that is capable of simulating the morphological change of a straight open-channel. The computational procedures take three steps, namely flow prediction, estimation of bedload, and building the new channel shape in response to the bedload transport. The one-dimensional depth-averaged equation, called the lateral distribution method, with vegetation drag term is used for flow prediction, and the vectorized formula proposed by Kovacs and Parker (1994) is used to estimate bedload. The Exner's equation is solved to predict the channel shape with the help of the sliding algorithm proposed by Menendez et al. (2008). First, the flow model is applied to a compound channel without vegetation on the floodplain. Then, non-dimensional eddy viscosity is calibrated for vegetated flows. Finally, the model is applied to a hypothetical compound channel with floodplain vegetation. The impacts of vegetation on the flow and morphological process are investigated and discussed.
| Original language | English |
|---|---|
| Title of host publication | 34th IAHR Congress 2011 - Balance and Uncertainty |
| Subtitle of host publication | Water in a Changing World, Incorporating the 33rd Hydrology and Water Resources Symposium and the 10th Conference on Hydraulics in Water Engineering |
| Publisher | International Association for Hydro-Environment Engineering and Research (IAHR) |
| Pages | 3427-3433 |
| Number of pages | 7 |
| ISBN (Electronic) | 9780858258686 |
| Publication status | Published - 2011 |
| Event | 34th IAHR Congress 2011 - Balance and Uncertainty: Water in a Changing World, Incorporating the 33rd Hydrology and Water Resources Symposium and the 10th Conference on Hydraulics in Water Engineering - Brisbane, Australia Duration: 2011 Jun 26 → 2011 Jul 1 |
Publication series
| Name | 34th IAHR Congress 2011 - Balance and Uncertainty: Water in a Changing World, Incorporating the 33rd Hydrology and Water Resources Symposium and the 10th Conference on Hydraulics in Water Engineering |
|---|
Conference
| Conference | 34th IAHR Congress 2011 - Balance and Uncertainty: Water in a Changing World, Incorporating the 33rd Hydrology and Water Resources Symposium and the 10th Conference on Hydraulics in Water Engineering |
|---|---|
| Country/Territory | Australia |
| City | Brisbane |
| Period | 11/6/26 → 11/7/1 |
Bibliographical note
Publisher Copyright:© 34th IAHR Congress 2011. All rights reserved.
All Science Journal Classification (ASJC) codes
- Engineering (miscellaneous)
- Water Science and Technology
- Environmental Science (miscellaneous)