Assessment of an ADCP's capabilities in laboratory conditions

Magnus Harrold, Peter Bromley, Merin Broudic, David Clelland, Aristides Kiprakis, Mohammad Abusara

Research output: Chapter in Book/Report/Conference proceedingConference contribution book

Abstract

A Nortek Aquadopp current profiler was tested at the University of Strathclyde's Kelvin Hydrodynamics Laboratory. To evaluate both the accuracy and precision of the instrument, it was towed on a carriage at a range of speeds up to 3.5ms-1. The effect of the spatial resolution and range parameter settings on these uncertainties has also been studied. Subsequent tests were performed to assess the disturbance characterisation and tracking capabilities of the instrument. These tests took place under regular wave conditions with the carriage held stationary. The precision of the instrument was found to be unaffected by tow speed, while accuracy decreased. Disturbance profiles similar to those predicted from theory were observed and tracked over consecutive time steps, despite the induced currents from the waves being low in magnitude. The instrument underestimated the peak values of these horizontal velocities, however, but this should be expected considering the instrument's principles of operation. Measurements of wavelength and phase velocity, both constant with respect to time, were found to be more accurate.

LanguageEnglish
Title of host publication2015 IEEE/OES 11th Current, Waves and Turbulence Measurement (CWTM)
Place of PublicationPiscataway, NJ.
PublisherIEEE
Pages1-5
Number of pages5
ISBN (Print)9781479984190
DOIs
Publication statusPublished - 29 Apr 2015
Event2015 11th IEEE/OES Current, Waves and Turbulence Measurement, CWTM 2015 - St. Petersburg, United States
Duration: 2 Mar 20156 Mar 2015

Conference

Conference2015 11th IEEE/OES Current, Waves and Turbulence Measurement, CWTM 2015
CountryUnited States
CitySt. Petersburg
Period2/03/156/03/15

Fingerprint

Acoustic Doppler Current Profiler
disturbance
carriages
profiler
phase velocity
spatial resolution
hydrodynamics
wavelength
disturbances
Phase velocity
Induced currents
Hydrodynamics
laboratory
speed
test
Wavelength
profiles
wavelengths
effect
parameter

Keywords

  • accuracy
  • ADCP
  • disturbance identification
  • precision
  • tank testing
  • tidal energy

Cite this

Harrold, M., Bromley, P., Broudic, M., Clelland, D., Kiprakis, A., & Abusara, M. (2015). Assessment of an ADCP's capabilities in laboratory conditions. In 2015 IEEE/OES 11th Current, Waves and Turbulence Measurement (CWTM) (pp. 1-5). [7098099] Piscataway, NJ.: IEEE. https://doi.org/10.1109/CWTM.2015.7098099
Harrold, Magnus ; Bromley, Peter ; Broudic, Merin ; Clelland, David ; Kiprakis, Aristides ; Abusara, Mohammad. / Assessment of an ADCP's capabilities in laboratory conditions. 2015 IEEE/OES 11th Current, Waves and Turbulence Measurement (CWTM). Piscataway, NJ. : IEEE, 2015. pp. 1-5
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abstract = "A Nortek Aquadopp current profiler was tested at the University of Strathclyde's Kelvin Hydrodynamics Laboratory. To evaluate both the accuracy and precision of the instrument, it was towed on a carriage at a range of speeds up to 3.5ms-1. The effect of the spatial resolution and range parameter settings on these uncertainties has also been studied. Subsequent tests were performed to assess the disturbance characterisation and tracking capabilities of the instrument. These tests took place under regular wave conditions with the carriage held stationary. The precision of the instrument was found to be unaffected by tow speed, while accuracy decreased. Disturbance profiles similar to those predicted from theory were observed and tracked over consecutive time steps, despite the induced currents from the waves being low in magnitude. The instrument underestimated the peak values of these horizontal velocities, however, but this should be expected considering the instrument's principles of operation. Measurements of wavelength and phase velocity, both constant with respect to time, were found to be more accurate.",
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Harrold, M, Bromley, P, Broudic, M, Clelland, D, Kiprakis, A & Abusara, M 2015, Assessment of an ADCP's capabilities in laboratory conditions. in 2015 IEEE/OES 11th Current, Waves and Turbulence Measurement (CWTM)., 7098099, IEEE, Piscataway, NJ., pp. 1-5, 2015 11th IEEE/OES Current, Waves and Turbulence Measurement, CWTM 2015, St. Petersburg, United States, 2/03/15. https://doi.org/10.1109/CWTM.2015.7098099

Assessment of an ADCP's capabilities in laboratory conditions. / Harrold, Magnus; Bromley, Peter; Broudic, Merin; Clelland, David; Kiprakis, Aristides; Abusara, Mohammad.

2015 IEEE/OES 11th Current, Waves and Turbulence Measurement (CWTM). Piscataway, NJ. : IEEE, 2015. p. 1-5 7098099.

Research output: Chapter in Book/Report/Conference proceedingConference contribution book

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Harrold M, Bromley P, Broudic M, Clelland D, Kiprakis A, Abusara M. Assessment of an ADCP's capabilities in laboratory conditions. In 2015 IEEE/OES 11th Current, Waves and Turbulence Measurement (CWTM). Piscataway, NJ.: IEEE. 2015. p. 1-5. 7098099 https://doi.org/10.1109/CWTM.2015.7098099