Spectral analysis of the boundary layer on a plunging airfoil
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Date
Authors
Soltani, M. R.
Rasi, Marzabadi F.
Journal Title
Journal ISSN
Volume Title
Publisher
International Conference on Heat Transfer, Fluid Mechanics and Thermodynamics
Abstract
Paper presented at the 7th International Conference on Heat Transfer, Fluid Mechanics and Thermodynamics, Turkey, 19-21 July, 2010.
The effects of periodic unsteady flow through plunging motion on the boundary layer transition along the suction surface of a typical wind turbine blade section are experimentally investigated The state of the boundary layer at different conditions was determined using multiple hot-film sensors through the frequency domain analysis. The appearance of laminar/turbulent spikes at dominated frequencies revealed the boundary layer characteristics. Power spectral of the hot-film signals showed that the transition locations as well as the separation region were a function of the reduced frequency and mean angle of attack.
The effects of periodic unsteady flow through plunging motion on the boundary layer transition along the suction surface of a typical wind turbine blade section are experimentally investigated The state of the boundary layer at different conditions was determined using multiple hot-film sensors through the frequency domain analysis. The appearance of laminar/turbulent spikes at dominated frequencies revealed the boundary layer characteristics. Power spectral of the hot-film signals showed that the transition locations as well as the separation region were a function of the reduced frequency and mean angle of attack.
Description
Keywords
Spectral analysis, Plunging airfoil
Sustainable Development Goals
Citation
Soltani, MR & Rasi MF 2010, 'Spectral analysis of the boundary layer on a plunging airfoil', Paper presented to the 7th International Conference on Heat Transfer, Fluid Mechanics and Thermodynamics, Turkey, 19-21 July 2010.