Stirring faces: mixing in a quiescent fluid
arXiv:1210.3747
Abstract
This fluid dynamics video depicts the mixing that occurs as a two-dimensional flat plate plunges sinusoidally in a quiescent fluid. Finite-time Lyapunov exponents reveal sets that are attracting or repelling. As the flow field develops, strange faces emerge.
1 page, two movies (plungingplate_large.mpg and plungingplate_small.mpg), for 65th APS Division of Fluid Dynamics (DFD) Meeting: Gallery of Fluid Motion