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Information Outlook, May 1997
Volume 1, Issue 5https://scholarworks.sjsu.edu/sla_io_1997/1004/thumbnail.jp
Design, development and testing of shape shifting wing model
The design and development of morphing (shape shifting) aircraft wings—an innovative
technology that has the potential to increase the aerodynamic efficiency and reduce noise signatures
of aircrafts—was carried out. This research was focused on reducing lift-induced drag at the flaps of
the aerofoil and to improve the design to achieve the optimum aerodynamic efficiency. Simulation
revealed a 10.8% coefficient of lift increase for the initial morphing wing and 15.4% for the optimized
morphing wing as compared to conventional wing design. At angles of attack of 0, 5, 10 and
15 degrees, the optimized wing has an increase in lift-to-drag ratio of 18.3%, 10.5%, 10.6% and 4%
respectively when compared with the conventional wing. Simulations also showed that there is
a significant improvement on pressure distribution over the lower surface of the morphing wing
aerofoil. The increase in flow smoothness and reduction in vortex size reduced pressure drag along
the trailing edge of the wing as a result an increase in pressure on the lower surface was experienced.
A morphing wing reduced the size of the vortices and therefore the noise levels measured were
reduced by up to 50%
Storytelling Health: A Content Analysis of Narrative Transportation and Identification Cues in Direct-to-Consumer Advertisements
Storytelling Health: A Content Analysis of Narrative Transportation and Identification Cues in Direct-to-Consumer Advertisement
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