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 language | American English |
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Number of pages | 8 |
DOIs | |
State | Published - 29 Apr 2015 |
Event | 2015 11th IEEE/OES Current, Waves and Turbulence Measurement, CWTM 2015 - St. Petersburg, United States Duration: 2 Mar 2015 → 6 Mar 2015 |
Conference
Conference | 2015 11th IEEE/OES Current, Waves and Turbulence Measurement, CWTM 2015 |
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Country/Territory | United States |
City | St. Petersburg |
Period | 2/03/15 → 6/03/15 |
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