Analysis of Acoustic Doppler Current Profiler Mean Velocity Measurements in Shallow Flows

Abstract

Acoustic Doppler current profilers (ADCPs) are commonly used instruments for measurement of natural streamflow and flow in manmade channels. Velocities measured in a profile by the instrument are used to estimate the discharge in a channel. A Teledyne RD Instruments StreamPro ADCP was used to measure the mean velocity simultaneously with a laser Doppler anemometer (LDA) in a laboratory flume. An average of 3.9% under-prediction of the mean velocity measured by the ADCP occurred when compared to the measurements of the LDA. Moreover, this study shows that the sampling duration of the measurements significantly impacts the mean point velocities measured by up to 50%.

Department(s)

Civil, Architectural and Environmental Engineering

Comments

U.S. Department of Agriculture, Grant COL00788

Keywords and Phrases

Acoustic Doppler velocimeter; Flow measurement; Laser Doppler anemometer

International Standard Serial Number (ISSN)

0955-5986

Document Type

Article - Journal

Document Version

Citation

File Type

text

Language(s)

English

Rights

© 2025 Elsevier, All rights reserved.

Publication Date

01 Aug 2020

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