Pulse Burst Images of 4:1 Elliptic Cone
The following images have been taken using the pulse burst laser system developed by the Applied Physics Group at Princeton University. 30-image sequences taken at 500 kHz allow us to visualize a small segment (60 microseconds) of the boundary layer evolution. Using a spanwise laser orientation at a fixed x-position, we visualize consecutive slices of the boundary layer in time. With the convection velocity and the "frozen flow" assumption, a 3-dimensional reconstruction in space is generated. More details...
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Centerline Structure (Rex=1.57E6)
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Flow moving out of image plane. (28 frames at 500 kHz) |
Off-Axis Structure (Rex=1.57E6)
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Flow moving out of image plane. (30 frames at 500 kHz) |
Traveling Wave Instabilities (Rex=0.87E6)
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Quicktime Movie
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Flow moving out of image plane. (29 frames at 500 kHz) |
Turbulent Flow (Rex=2.46E6)
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Quicktime Movie
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Flow moving out of image plane. (30 frames at 500 kHz) |
