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

Javaherchi, Teymour; Stelzenmuller, Nick; Aliseda, Alberto

doi:10.1063/1.4999600

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

Journal Article · Mon Aug 21 00:00:00 EDT 2017 · Journal of Renewable and Sustainable Energy

DOI:https://doi.org/10.1063/1.4999600· OSTI ID:1474283

Javaherchi, Teymour ^[1]; Stelzenmuller, Nick ^[2]; Aliseda, Alberto ^[2]

Univ. of Washington, Seattle, WA (United States); Teymour Javaherchi Mechanical Engineering, University of Washington, Stevens Way, Box 352600 - Seattle, Washington 98195, USA
Univ. of Washington, Seattle, WA (United States)

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 C_p–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.

Research Organization:: Oregon State Univ., Corvallis, Oregon (United States)

Sponsoring Organization:: USDOE

Grant/Contract Number:: FG36-08GO18179

OSTI ID:: 1474283

Alternate ID(s):: OSTI ID: 1375655

Journal Information:: Journal of Renewable and Sustainable Energy, Journal Name: Journal of Renewable and Sustainable Energy Journal Issue: 4 Vol. 9; ISSN 1941-7012

Publisher:: American Institute of Physics (AIP)Copyright Statement

Country of Publication:: United States

Language:: English

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A Numerical Methodology for Simple Optimization of Marine Hydrokinetic Turbine Array Radfar, Soheil; Panahi, Roozbeh https://doi.org/10.20944/preprints202004.0545.v1	preprint	April 2020

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