| contributor author | I. Guymer | |
| date accessioned | 2017-05-08T20:42:58Z | |
| date available | 2017-05-08T20:42:58Z | |
| date copyright | January 1998 | |
| date issued | 1998 | |
| identifier other | %28asce%290733-9429%281998%29124%3A1%2833%29.pdf | |
| identifier uri | http://yetl.yabesh.ir/yetl/handle/yetl/24519 | |
| description abstract | Results are presented from a series of laboratory experiments conducted on a large scale channel with sinuous planform geometry. These have been used to obtain the magnitude of the longitudinal dispersion coefficient. A constant trapezoidal cross section and a variable cross-sectional “natural” shape under different discharges have been studied. Temporal concentration distributions recorded for the trapezoidal section tend towards Gaussian form and provide values of a longitudinal dispersion coefficient comparable with previous similar studies. The more “natural” cross-sectional geometry channel exhibits strongly skewed distributions and increases the value of a longitudinal dispersion parameter by over 150%. Variation of a longitudinal dispersion coefficient with discharge has been observed and has been explained by the effects of the longitudinally varying cross-sectional shape. A comparison between observed and predicted distributions from a simple routing procedure emphasizes the need for an improved method for incorporating the effects of longitudinal variations in cross-sectional shape. | |
| publisher | American Society of Civil Engineers | |
| title | Longitudinal Dispersion in Sinuous Channel with Changes in Shape | |
| type | Journal Paper | |
| journal volume | 124 | |
| journal issue | 1 | |
| journal title | Journal of Hydraulic Engineering | |
| identifier doi | 10.1061/(ASCE)0733-9429(1998)124:1(33) | |
| tree | Journal of Hydraulic Engineering:;1998:;Volume ( 124 ):;issue: 001 | |
| contenttype | Fulltext | |
