| contributor author | Steven R. Abt | |
| contributor author | Christopher Cook | |
| contributor author | Kenneth J. Staker | |
| contributor author | Derek D. Johns | |
| date accessioned | 2017-05-08T20:41:29Z | |
| date available | 2017-05-08T20:41:29Z | |
| date copyright | May 1992 | |
| date issued | 1992 | |
| identifier other | %28asce%290733-9429%281992%29118%3A5%28798%29.pdf | |
| identifier uri | http://yetl.yabesh.ir/yetl/handle/yetl/23653 | |
| description abstract | The Parshall flume is one of the most widely used instruments for measuring water discharge in open channels. However, field observations indicate that because the flume is subjected to field and climatic conditions, it may settle over time. A study was conducted at the Hydraulics Laboratory of Colorado State University to evaluate how settlement affects the accuracy of 1, 2, and 3 in. (2.54, 5.08, and 7.62 cm) Parshall flumes. The Parshall flumes were installed into a recirculating laboratory flume and tested for lateral slope, longitudinal slope, and combined lateral-longitudinal slope settlements. Flume slopes varied ±13% and were conducted for free outfall conditions. The results indicate that Parshall flume ratings can be corrected for lateral, longitudinal, and combined lateral-longitudinal slope conditions. Correction factors are derived for small Parshall flumes for lateral and longitudinal settlement. A procedure is presented to adjust the flow rating as a function of the slope, flow depth, and throat width. | |
| publisher | American Society of Civil Engineers | |
| title | Small Parshall Flume Rating Correction | |
| type | Journal Paper | |
| journal volume | 118 | |
| journal issue | 5 | |
| journal title | Journal of Hydraulic Engineering | |
| identifier doi | 10.1061/(ASCE)0733-9429(1992)118:5(798) | |
| tree | Journal of Hydraulic Engineering:;1992:;Volume ( 118 ):;issue: 005 | |
| contenttype | Fulltext | |
