Harvard University Division of Engineering and Applied Sciences Kavli Institute Wyss Institute School of Engineering and Applied Sciences Department of Organismic and Evolutionary Biology Harvard University
Interior Banner

PRESS

Flutter of a flag

The flutter of a flag in a gentle breeze, or the flapping of a sail in a rough wind are commonplace and familiar observations of a rich class of problems involving the interaction of fluids and structures, of wide interest and importance in science and engineering. In a recent study, we studied the mechanism that leads to this instability using a combination of analysis and scaling that lead us to a relatively simple theory for the critical velocity for the onset of flutter and the frequency of flapping.

Image courtesy of M. Argentina
Image courtesy of M. Argentina

Related Article

  • Fluid-flow induced flutter of a flag, Argentina, M. and L. Mahadevan, Proceedings of the National Academy of Sciences (USA), 102, 1829-34, 2005.  Click here for PDF version of article.

Media

top

   Last Updated: January 6, 2013

people | research | education | publications | press | news & events | links | contact us | home

© Copyright 2006 President and Fellows of Harvard University.

Site design: Academic Web Pages