TY  - JOUR
T1  - Flow Visualization Study of Wing-Tip Vortex for a Wing with Cavity
AU - Xi, Tey Shen AU - Kamaruddin, Noorfazreena Mohammad AU - Mohamed-Kassim, Zulfaa 
JO  - Journal of Engineering and Applied Sciences
VL  - 12
IS  - 15
SP  - 3813
EP  - 3817
PY  - 2017
DA  - 2001/08/19
SN  - 1816-949x
DO  - jeasci.2017.3813.3817
UR  - https://makhillpublications.co/view-article.php?doi=jeasci.2017.3813.3817
KW  - Wing-tip vortex
KW  -cavity
KW  -smoke visualization technique
KW  -vortex trapping
KW  -wing model
AB  - This study investigates the flow structures of wing-tip vortex for a wing model with cavity variation at low Reynolds number. The flow structures over a triple-cavities wing model with an aspect ratio of 2 were investigated at angle of attack 0°, 5°, 10° and 15° by using smoke wire flow visualization technique. A non-cavity flat plate model was employed as a reference for comparison of flow structures between the two wing models. The flow visualization results revealed that as the angle of attack increased the wing-tip vortices were increased in strength and more maturely developed with an inboard circulation over the wing-tip. The downwash effect of the wing-tip vortex also resulted in vortex trapping in the cavity of the wing model which rotated clockwise before exiting the cavity. The experiment also revealed that the vortex is trapped and occurred more significantly at higher angle of attack which could potentially lead to the reduction of induced drag.
ER  -