Experimental investigation of 3D flow field around a Flapping wing making figure-of-eight motion in hover Using PIV technique

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2014

Author

Ersöz, İrem

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This thesis presents the results of experimental investigation of vortex formation around a three dimensional flapping wing making figure-of-eight motion in hovering flight at low Reynolds numbers. These results are compared with those obtained from previous computational and experimental studies of the same flapping motions. Analysis of vortex formations around the three dimensional flapping wing and the investigations of the effect of different parameters such as the amplitude of motion in y direction and the angle of attack throughout the spanwise direction are performed using the Particle Image Velocimetry (PIV) technique. The experimental setup that was previously used in the study of Baskan was improved, in such way that the vortical structures during the figure-of-eight motion could be visualized and measured much better. From series of measurements, the three-dimensional experimental results indicate a very good agreement with the two-dimensional numerical results which were performed by Cekinmez.

Subject Keywords

Flaps (Airplanes)., Airplanes, Vortex-motion., Particle image velocimetry .

URI

http://etd.lib.metu.edu.tr/upload/12618022/index.pdf
https://hdl.handle.net/11511/24020

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Graduate School of Natural and Applied Sciences, Thesis

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Citation Formats

İ. Ersöz, “Experimental investigation of 3D flow field around a Flapping wing making figure-of-eight motion in hover Using PIV technique,” M.S. - Master of Science, Middle East Technical University, 2014.