Impact of non-level operation of a circular flume on discharge measurements
Authors: Healy, L., G. Ontkean
Description: Accurate flow measurement is a critical component of water management. The circular flume was developed as a simple, low-cost, and accurate alternative to existing flow measurement devices. Circular flumes are portable, easy to install, and designed to operate at a level slope. However, after installation the flume may shift away from the level slope position due to factors such as freeze thaw of the soil and water erosion. If not re-levelled discharge data will be affected. Examination of the discharge obtained over flows ranging from 0.13 l/s to over 107.23 l/s and slope classes ranging from 1 to 7% indicates that operation of circular flumes at other than level slope conditions will result in a general underestimation of discharge. The amount of error observed is greatest under low flow conditions. Level installation and monitoring of the slope of circular flumes is recommended.
Keywords: Flow Measurement, Circular Flume, Hydrometrics
Technical field: Information Systems Engineering
Conference name: CSBE/SCGAB 2015 Annual Conference, Edmonton, AB, 5-8 July 2015.
Session name: Water Management II - Structures and Modelling
Citation: Healy, L., G. Ontkean. 2015. Impact of non-level operation of a circular flume on discharge measurements. CSBE/SCGAB 2015 Annual Conference, Edmonton, AB, 5-8 July 2015.
Publisher: Canadian Society for Bioengineering
Language 1: en
Rights: Canadian Society for Bioengineering