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This picture depicts a top view of a turbulent spot growing by destabilizing
the surrounding laminar (vortical) flow. Flow is from left to right. This
picture was the first to appear in an archival publication (Journal of
Fluid Mechanics, vol. 110, p. 73, 1981) showing the utility of flow visualization
via laser-induced fluorescence (LIF), a technique which is now widely
used around the world for detailing the anatomy of three-dimensional flow
fields.
Contributed by Prof. M. Gad-el-Hak, University of Notre Dame.
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