Abstract
Acoustic Doppler Profilers (ADPs) are routinely used to measure flow velocity in the ocean, enabling multi-points measurement along a profile while Acoustic Doppler Velocimeters (ADVs) are laboratory instruments that provide very precise point velocity measurement. The experimental set-up allows laboratory comparison of measurement from these two instruments. Simultaneous multi-point measurements of velocity along the horizontal tank profile from Single-Beam Acoustic Doppler Profiler (SB-ADP) were compared against multiple co-located point measurements from an ADV. Measurements were performed in the FloWave Ocean Energy Research Facility at the University of Edinburgh at flow velocities between 0.6 ms − 1 and 1.2 ms − 1 . This paper describes the data; the analysis of the inter-instrument comparison is presented in an associated Sensors paper by the same authors. This data-set contains (a) time series of raw SB-ADP uni-directional velocity measurements along a 10 m tank profile binned into 54 measurements cells and (b) ADV point measurements of three-directional velocity time series recorded in beam coordinates at selected locations along the profile. Associated with the data are instrument generated quality data, metadata and user-derived quality flags. An analysis of the quality of SB-ADP data along the profile is presented. This data-set provides multiple contemporaneous velocity measurements along the tank profile, relevant for correlation statistics, length-scale calculations and validation of numerical models simulating flow hydrodynamics in circular test facilities.
Highlights
Knowledge of flow hydrodynamics in test tanks is critical for multiple tank testing applications
This paper reports data associated with the velocity profiles measured by the SB-Acoustic Doppler Profilers (ADPs) and the co-located Acoustic Doppler Velocimeters (ADVs) velocity measurements at a range of typical tank operating velocities
The component of flow velocity captured by the Single-Beam Acoustic Doppler Profiler (SB-ADP) is the radial flow velocity along the acoustic beam formed by the sound waves
Summary
Knowledge of flow hydrodynamics in test tanks is critical for multiple tank testing applications. Flow measurement in test tanks is typically performed using point measurement techniques such as Laser Doppler Velocimetry (LDV) or Acoustic Doppler Velocimetry (ADV) [6,7,8,9,10]. In this paper we present data from the inter-instrument comparisons and tank-testing work of Jourdain de Thieulloy et al [13], providing further detail on experimental setup and acquired measurements. In Jourdain de Thieulloy et al [13], a profiling instrument was introduced in the context of tank testing, namely a Nortek 1 MHz single-beam acoustic Doppler profiler (SB-ADP). This paper reports data associated with the velocity profiles measured by the SB-ADP and the co-located ADV velocity measurements at a range of typical tank operating velocities. The SB-ADP configuration generated 54 simultaneous measurements of uni-directional velocity over a 10 m profile
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