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Smart Surfaces: Smart Morphable Surfaces for Aerodynamic Drag Control (Adv. Mater. 38/2014)
Author(s) -
Terwagne Denis,
Brojan Miha,
Reis Pedro M.
Publication year - 2014
Publication title -
advanced materials
Language(s) - English
Resource type - Journals
SCImago Journal Rank - 10.707
H-Index - 527
eISSN - 1521-4095
pISSN - 0935-9648
DOI - 10.1002/adma.201470262
Subject(s) - drag , materials science , bluff , parasitic drag , aerodynamics , aerodynamic drag , drag coefficient , flow control (data) , instability , mechanics , computer science , physics , computer network
Smart morphable surfaces, as described by P. M. Reis and co‐workers on page 6608, enable switchable and tunable aerodynamic drag reduction of bluff bodies. Their topography, resembling that 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 by up to a factor of two, over a range of flow conditions.