Smart Morphable Surfaces for Aerodynamic Drag Control

Smart Morphable Surfaces enable switchable and tunable aerodynamic drag reduction of bluff bodies. Their topography, resembling the morphology of golf balls, can be custom‐generated through a wrinkling instability on a curved surface. Pneumatic actuation of these patterns results in the control of t...

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Bibliographic Details
Published in:Advanced materials (Weinheim) 2014-10, Vol.26 (38), p.6608-6611
Main Authors: Terwagne, Denis, Brojan, Miha, Reis, Pedro M.
Format: Article
Language:English
Subjects:
Aerodynamic drag
Bluff bodies
Curved
Drag coefficients
drag reduction
Instability
patterning
rapid prototyping
smart surfaces
Stability
Topography
Wrinkling
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Summary:Smart Morphable Surfaces enable switchable and tunable aerodynamic drag reduction of bluff bodies. Their topography, resembling the morphology of golf balls, can be custom‐generated through a wrinkling instability on a curved surface. Pneumatic actuation of these patterns results in the control of the drag coefficient of spherical samples by up to a factor of two, over a range of flow conditions.
ISSN:0935-9648
1521-4095
DOI:10.1002/adma.201401403