The Library
Three-dimensional numerical simulation of solute transport in a meandering self-formed river channel
Tools
Tools
Tools
Wilson, C. A. M. E., Guymer, I., Boxall, J. B. and Olsen, N. R. B.. (2007) Three-dimensional numerical simulation of solute transport in a meandering self-formed river channel. Journal of Hydraulic Research, Vol.45 (No.5). pp. 610-616. ISSN 0022-1686
Full text not available from this repository.
Official URL: http://dx.doi.org/10.1080/00221686.2007.9521797
Abstract
A three-dimensional (3-D) numerical model with standard k-epsilon,turbulence closure has been applied to model the transport and mixing of solute in a larae-scale laboratory channel. The channel is meandering with self-formed cross-sectional shape. Simulation accuracy was evaluated through comparison of computed and measured temporal concentration curves downstream of a pulse injection from a transverse line source. This study shows that the transport and mixing of solute in a meandering channel with a physically realistic bathymetry can be simulated accurately with a 3-D numerical model using k-epsilon turbulence closure. The prediction accuracy of the temporal concentration curves using different time steps, numerical schemes and Schmidt numbers are presented. The performance was evaluated in terms of a goodness of fit, computed peak concentration and gradients of the rising and falling limbs. The second order upwind scheme for the advective term in the solution of the advection-diffusion equation was found to give a considerably better prediction of the temporal concentration curve than the power law scheme. A value of unity for the turbulent Schmidt number results in a slightly early arrival time of the peak in tracer concentration, reducing the value of Schmidt number to 0.5 was found to result in a more accurate prediction.
| Item Type: | Journal Article |
|---|---|
| Subjects: | T Technology > TA Engineering (General). Civil engineering (General) T Technology > TC Hydraulic engineering. Ocean engineering |
| Divisions: | Faculty of Science > Engineering |
| Journal or Publication Title: | Journal of Hydraulic Research |
| Publisher: | Taylor & Francis Ltd. |
| ISSN: | 0022-1686 |
| Date: | 2007 |
| Volume: | Vol.45 |
| Number: | No.5 |
| Number of Pages: | 7 |
| Page Range: | pp. 610-616 |
| Identification Number: | 10.1080/00221686.2007.9521797 |
| Status: | Peer Reviewed |
| Publication Status: | Published |
| Access rights to Published version: | Restricted or Subscription Access |
| Funder: | Engineering and Physical Science Research Council (EPSRC) |
| Grant number: | GR/A11239/01 |
| URI: | http://wrap.warwick.ac.uk/id/eprint/31159 |
Data sourced from Thomson Reuters' Web of Knowledge
Actions (login required)
 |
View Item |
