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Title: Experimental and numerical analysis of the performance and wake of a scale–model horizontal axis marine hydrokinetic turbine

Here, this paper presents an experimental and numerical study of a scale-model Horizontal Axis Hydrokinetic Turbine (HAHT). The model turbine is based on the U.S. Department of Energy Reference Model 1 (RM1), with the blade geometry modified to reproduce the design Cp–TSR performance curve of the RM1 at the flume scale Reynolds numbers (5 × 10 4–10 × 10 5). The performance and wake structure of a 45:1 scale turbine were measured using a load cell (torque applied on shaft) and a magnetic angular encoder (rotor rpm), and by planar particle image velocimetry, respectively. The details of the rotor flow field and three-dimensional wake evolution are analyzed from the numerical solution of the RANS equations solved around a computational model of the turbine. The comparison of experimental and numerical results highlights the strengths and limitations of the experimental and numerical analyses in the characterization of HAHT. Useful guidelines for developing experimental flume scale data and using them for validating numerical tools, as well as for performing a similar type of analysis and design validation of full scale devices as pilot projects start to go in the water in the United States, are provided.
Authors:
 [1] ;  [1] ;  [1]
  1. Univ. of Washington, Seattle, WA (United States)
Publication Date:
Grant/Contract Number:
FG36-08GO18179; EE0003283
Type:
Accepted Manuscript
Journal Name:
Journal of Renewable and Sustainable Energy
Additional Journal Information:
Journal Volume: 9; Journal Issue: 4; Journal ID: ISSN 1941-7012
Publisher:
American Institute of Physics (AIP)
Research Org:
Oregon State Univ., Corvallis, Oregon (United States)
Sponsoring Org:
USDOE
Country of Publication:
United States
Language:
English
Subject:
13 HYDRO ENERGY
OSTI Identifier:
1474283
Alternate Identifier(s):
OSTI ID: 1375655

Javaherchi, Teymour, Stelzenmuller, Nick, and Aliseda, Alberto. Experimental and numerical analysis of the performance and wake of a scale–model horizontal axis marine hydrokinetic turbine. United States: N. p., Web. doi:10.1063/1.4999600.
Javaherchi, Teymour, Stelzenmuller, Nick, & Aliseda, Alberto. Experimental and numerical analysis of the performance and wake of a scale–model horizontal axis marine hydrokinetic turbine. United States. doi:10.1063/1.4999600.
Javaherchi, Teymour, Stelzenmuller, Nick, and Aliseda, Alberto. 2017. "Experimental and numerical analysis of the performance and wake of a scale–model horizontal axis marine hydrokinetic turbine". United States. doi:10.1063/1.4999600. https://www.osti.gov/servlets/purl/1474283.
@article{osti_1474283,
title = {Experimental and numerical analysis of the performance and wake of a scale–model horizontal axis marine hydrokinetic turbine},
author = {Javaherchi, Teymour and Stelzenmuller, Nick and Aliseda, Alberto},
abstractNote = {Here, this paper presents an experimental and numerical study of a scale-model Horizontal Axis Hydrokinetic Turbine (HAHT). The model turbine is based on the U.S. Department of Energy Reference Model 1 (RM1), with the blade geometry modified to reproduce the design Cp–TSR performance curve of the RM1 at the flume scale Reynolds numbers (5 × 104–10 × 105). The performance and wake structure of a 45:1 scale turbine were measured using a load cell (torque applied on shaft) and a magnetic angular encoder (rotor rpm), and by planar particle image velocimetry, respectively. The details of the rotor flow field and three-dimensional wake evolution are analyzed from the numerical solution of the RANS equations solved around a computational model of the turbine. The comparison of experimental and numerical results highlights the strengths and limitations of the experimental and numerical analyses in the characterization of HAHT. Useful guidelines for developing experimental flume scale data and using them for validating numerical tools, as well as for performing a similar type of analysis and design validation of full scale devices as pilot projects start to go in the water in the United States, are provided.},
doi = {10.1063/1.4999600},
journal = {Journal of Renewable and Sustainable Energy},
number = 4,
volume = 9,
place = {United States},
year = {2017},
month = {8}
}