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 journalConference articlepeer-review


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 languageEnglish
Article number07008
JournalE3S Web of Conferences
Publication statusPublished - 2018 Nov 27
Event3rd International Conference on Power and Renewable Energy, ICPRE 2018 - Berlin, Germany
Duration: 2018 Sep 212018 Sep 24

All Science Journal Classification (ASJC) codes

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

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