Experimental Evaluation of Motion Compensated ADV Measurements for In-Stream Hydrokinetic Applications

Levi Kilcher, James VanZwieten Jr., Matthew Egeland, Karl von Ellenrieder, James Lovenbury

Research output: Contribution to conferencePaperpeer-review

3 Scopus Citations

Abstract

This study quantifies the impact of Inertial Measurement Unit (IMU) error on turbulence estimates calculated from motion compensated Acoustic Doppler Velocimeter (ADV) measurements. This analysis shows that IMU error can completely mask the turbulent spectra in the horizontal plane in low current areas (0.4 m/s) and reduce this range to 4-60 seconds in stronger tidal flows. However, even in an evaluated low current area (0.4 m/s) vertical spectra can be measure at periods between 1-60 seconds, with stronger current areas having a measureable frequency range with periods from 0.8-80 seconds.

Original languageAmerican English
Number of pages8
DOIs
StatePublished - 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
Country/TerritoryUnited States
CitySt. Petersburg
Period2/03/156/03/15

Bibliographical note

Publisher Copyright:
© 2015 IEEE.

NREL Publication Number

  • NREL/CP-5000-65202

Keywords

  • ADV
  • in-stream hydrokinetic
  • ocean current energy
  • resource assessment
  • tidal energy
  • turbulence

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