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Ioannis Tzivinikos

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Journal article
Published: 01 November 2017 in Aerospace
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An experimental investigation of the wake of an Unmanned Aerial Vehicle (UAV) model using flow visualization techniques and a 3D Laser Doppler Anemometry (LDA) system is presented in this work. Emphasis is given on the flow field at the wingtip and the investigation of the tip vortices. A comparison of the velocity field is made with and without winglet devices installed at the wingtips. The experiments are carried out in a closed-circuit subsonic wind tunnel. The flow visualization techniques include smoke-wire and smoke-probe experiments to identify the flow phenomena, whereas for accurately measuring the velocity field point measurements are conducted using the LDA system. Apart from the measured velocities, vorticity and circulation quantities are also calculated and compared for the two cases. The results help to provide a more detailed view of the flow field around the UAV and indicate the winglets’ significant contribution to the deconstruction of wing-tip vortex structures.

ACS Style

Pericles Panagiotou; George Ioannidis; Ioannis Tzivinikos; Kyros Yakinthos. Experimental Investigation of the Wake and the Wingtip Vortices of a UAV Model. Aerospace 2017, 4, 53 .

AMA Style

Pericles Panagiotou, George Ioannidis, Ioannis Tzivinikos, Kyros Yakinthos. Experimental Investigation of the Wake and the Wingtip Vortices of a UAV Model. Aerospace. 2017; 4 (4):53.

Chicago/Turabian Style

Pericles Panagiotou; George Ioannidis; Ioannis Tzivinikos; Kyros Yakinthos. 2017. "Experimental Investigation of the Wake and the Wingtip Vortices of a UAV Model." Aerospace 4, no. 4: 53.