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Title: Implications of asymmetric beam geometry for convergent acoustic Doppler profilers

Abstract

The focus of this research is to develop a measurement instrument to characterize complex flows at spatial and temporal resolutions pertinent to understanding hydrodynamic loads in zones of fluid-structure interaction. Foundational work has demonstrated that flow velocities can be measured at a fixed focal point using a convergent array of acoustic Doppler profiling (C-ADP) instruments. As an extension of this concept, the following approach describes an application of the technology to facilitate 3D velocity measurements at a dynamically adjustable focal point location. Furthermore, the ability to dynamically control the focal point location in real-time allows the instrument to survey velocities within a three-dimensional velocity field. The resulting configuration targets a combination of measurement fidelity and control that has not been achieved by existing remote flow measurement instrumentation in the marine environment.

Authors:
 [1];  [2];  [2]
  1. BATTELLE (PACIFIC NW LAB)
  2. University of Edinburgh
Publication Date:
Research Org.:
Pacific Northwest National Lab. (PNNL), Richland, WA (United States)
Sponsoring Org.:
USDOE
OSTI Identifier:
1604779
Report Number(s):
PNNL-SA-147839
DOE Contract Number:  
AC05-76RL01830
Resource Type:
Conference
Resource Relation:
Conference: IEEE/OES Twelfth Current, Waves and Turbulence Measurement (CWTM 2019), March 10-13, 2019, San Diego, CA
Country of Publication:
United States
Language:
English

Citation Formats

Harding, Samuel F., Sellar, Brian, and Dorward, Mairi. Implications of asymmetric beam geometry for convergent acoustic Doppler profilers. United States: N. p., 2019. Web. doi:10.1109/CWTM43797.2019.8955290.
Harding, Samuel F., Sellar, Brian, & Dorward, Mairi. Implications of asymmetric beam geometry for convergent acoustic Doppler profilers. United States. doi:10.1109/CWTM43797.2019.8955290.
Harding, Samuel F., Sellar, Brian, and Dorward, Mairi. Tue . "Implications of asymmetric beam geometry for convergent acoustic Doppler profilers". United States. doi:10.1109/CWTM43797.2019.8955290.
@article{osti_1604779,
title = {Implications of asymmetric beam geometry for convergent acoustic Doppler profilers},
author = {Harding, Samuel F. and Sellar, Brian and Dorward, Mairi},
abstractNote = {The focus of this research is to develop a measurement instrument to characterize complex flows at spatial and temporal resolutions pertinent to understanding hydrodynamic loads in zones of fluid-structure interaction. Foundational work has demonstrated that flow velocities can be measured at a fixed focal point using a convergent array of acoustic Doppler profiling (C-ADP) instruments. As an extension of this concept, the following approach describes an application of the technology to facilitate 3D velocity measurements at a dynamically adjustable focal point location. Furthermore, the ability to dynamically control the focal point location in real-time allows the instrument to survey velocities within a three-dimensional velocity field. The resulting configuration targets a combination of measurement fidelity and control that has not been achieved by existing remote flow measurement instrumentation in the marine environment.},
doi = {10.1109/CWTM43797.2019.8955290},
journal = {},
number = ,
volume = ,
place = {United States},
year = {2019},
month = {8}
}

Conference:
Other availability
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