Numerical Studies on a NACA0018 Airfoil Blade HAWT with Trailing Edge Jet Flow

Hsu Uzu-Kuei; Tai Cheng-Hsien; Hsu Chia-Wei; Miau Jiun-Jih

doi:10.1051/e3sconf/20186407008

Numerical Studies on a NACA0018 Airfoil Blade HAWT with Trailing Edge Jet Flow

Hsu Uzu-Kuei, Tai Cheng-Hsien, Hsu Chia-Wei, Miau Jiun-Jih

Research output: Contribution to journal › Conference article › peer-review

Abstract

This study analyzed an airfoil blade for a horizontal-axis wind turbine (HAWT) with a trailing-edge jet flow design. This design was realized by drilling a hole in the trailing edge of an NACA0018 blade of a conventional HAWT to serve as a pressure injection nozzle. Five inflow wind speeds and three trailing-edge jet flow conditions were examined in the test. The results revealed the efficiency differences between a HAWT with the new jet flow design and conventional HAWTs. The experimental methods employed involved a wind tunnel experiment and a computational fluid dynamics (CFD) simulation. The results revealed that when the inflow wind speed was low, the trailing-edge jet flow accelerated the initiation phase and increased the rotating speed of the HAWT; however, when the inflow wind speed was high, damping occurred and the rotating speed of the turbine blades decreased.

Original language	English
Article number	07008
Journal	E3S Web of Conferences
Volume	64
DOIs	https://doi.org/10.1051/e3sconf/20186407008
Publication status	Published - 2018 Nov 27
Event	3rd International Conference on Power and Renewable Energy, ICPRE 2018 - Berlin, Germany Duration: 2018 Sep 21 → 2018 Sep 24

All Science Journal Classification (ASJC) codes

Environmental Science(all)
Energy(all)
Earth and Planetary Sciences(all)

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10.1051/e3sconf/20186407008

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title = "Numerical Studies on a NACA0018 Airfoil Blade HAWT with Trailing Edge Jet Flow",

abstract = "This study analyzed an airfoil blade for a horizontal-axis wind turbine (HAWT) with a trailing-edge jet flow design. This design was realized by drilling a hole in the trailing edge of an NACA0018 blade of a conventional HAWT to serve as a pressure injection nozzle. Five inflow wind speeds and three trailing-edge jet flow conditions were examined in the test. The results revealed the efficiency differences between a HAWT with the new jet flow design and conventional HAWTs. The experimental methods employed involved a wind tunnel experiment and a computational fluid dynamics (CFD) simulation. The results revealed that when the inflow wind speed was low, the trailing-edge jet flow accelerated the initiation phase and increased the rotating speed of the HAWT; however, when the inflow wind speed was high, damping occurred and the rotating speed of the turbine blades decreased.",

author = "Hsu Uzu-Kuei and Tai Cheng-Hsien and Hsu Chia-Wei and Miau Jiun-Jih",

year = "2018",

month = nov,

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doi = "10.1051/e3sconf/20186407008",

language = "English",

volume = "64",

journal = "E3S Web of Conferences",

issn = "2555-0403",

publisher = "EDP Sciences",

note = "3rd International Conference on Power and Renewable Energy, ICPRE 2018 ; Conference date: 21-09-2018 Through 24-09-2018",

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T1 - Numerical Studies on a NACA0018 Airfoil Blade HAWT with Trailing Edge Jet Flow

AU - Uzu-Kuei, Hsu

AU - Cheng-Hsien, Tai

AU - Chia-Wei, Hsu

AU - Jiun-Jih, Miau

PY - 2018/11/27

Y1 - 2018/11/27

N2 - This study analyzed an airfoil blade for a horizontal-axis wind turbine (HAWT) with a trailing-edge jet flow design. This design was realized by drilling a hole in the trailing edge of an NACA0018 blade of a conventional HAWT to serve as a pressure injection nozzle. Five inflow wind speeds and three trailing-edge jet flow conditions were examined in the test. The results revealed the efficiency differences between a HAWT with the new jet flow design and conventional HAWTs. The experimental methods employed involved a wind tunnel experiment and a computational fluid dynamics (CFD) simulation. The results revealed that when the inflow wind speed was low, the trailing-edge jet flow accelerated the initiation phase and increased the rotating speed of the HAWT; however, when the inflow wind speed was high, damping occurred and the rotating speed of the turbine blades decreased.

AB - This study analyzed an airfoil blade for a horizontal-axis wind turbine (HAWT) with a trailing-edge jet flow design. This design was realized by drilling a hole in the trailing edge of an NACA0018 blade of a conventional HAWT to serve as a pressure injection nozzle. Five inflow wind speeds and three trailing-edge jet flow conditions were examined in the test. The results revealed the efficiency differences between a HAWT with the new jet flow design and conventional HAWTs. The experimental methods employed involved a wind tunnel experiment and a computational fluid dynamics (CFD) simulation. The results revealed that when the inflow wind speed was low, the trailing-edge jet flow accelerated the initiation phase and increased the rotating speed of the HAWT; however, when the inflow wind speed was high, damping occurred and the rotating speed of the turbine blades decreased.

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