Author(s): Hening Huang; Fajun Wang; Zhanping Xi
Linked Author(s): Hening Huang
Keywords: No Keywords
Abstract: A new acoustic Doppler current profiler, V-ADCP, for measuring water velocity, level, and flow in open channels or large pipes was developed recently. VADCP uses the broadband pulsed Doppler technology. A numerical model to calculate flow using the V-ADCP measured velocity profile and water level data was developed and implemented in the V-ADCP operation software. The numerical model is appropriate and no calibration is required for a narrow channel. A V-ADCP can also be used as an index-velocity meter for a wide channel. Results from two tests are presented in this paper. The first test was conducted in a 1-m diameter pipe at the National Large Water Flow Meter Test Center in Kaifeng, China. The results indicated that the V-ADCP measured flow agreed well with the standard flow meter measured flow. The second test was conducted in a flume at the Hydraulic Model Test 3 facility, Royal Irrigation Department, in Bangkok, Thailand. The results indicated that the V-ADCP measured flow was consistent with the 90 degree V-notch weir measured flow.
Year: 2009