| contributor author | Mirmosadegh Jamali | |
| contributor author | Gregory A. Lawrence | |
| contributor author | Kevin Maloney | |
| date accessioned | 2017-05-08T20:45:07Z | |
| date available | 2017-05-08T20:45:07Z | |
| date copyright | May 2005 | |
| date issued | 2005 | |
| identifier other | %28asce%290733-9429%282005%29131%3A5%28390%29.pdf | |
| identifier uri | http://yetl.yabesh.ir/yetl/handle/yetl/25905 | |
| description abstract | Most analyses of turbulent mixing in rivers assume constant hydraulic geometry (width, depth, and velocity), despite the fact that in natural rivers these variables typically increase downstream. A comprehensive set of data for the rivers and streams in the United States is used to derive generalized equations for variations in hydraulic geometry. As a preliminary investigation of the importance of these variations, an approximate analytical solution to the one-dimensional advective-dispersion equation is derived for rivers with variable velocity, cross-sectional area, and dispersion coefficient. The solution compares well with previous analyses, and is used to assess the potential environmental impacts of methanol releases into a hypothetical river. The resulting downstream concentrations of methanol are considerably lower than those calculated assuming constant hydraulic geometry. | |
| publisher | American Society of Civil Engineers | |
| title | Dispersion in Varying-Geometry Rivers with Application to Methanol Releases | |
| type | Journal Paper | |
| journal volume | 131 | |
| journal issue | 5 | |
| journal title | Journal of Hydraulic Engineering | |
| identifier doi | 10.1061/(ASCE)0733-9429(2005)131:5(390) | |
| tree | Journal of Hydraulic Engineering:;2005:;Volume ( 131 ):;issue: 005 | |
| contenttype | Fulltext | |
