Feb 8, 2000
Lagrangian Measurements in Turbulence
Eberhard Bodenschatz, (Cornell)
We are rpeorting on Lagrangian particle tracking in a high Reynolds number
turbulent flow. We are using silicon strip detectors developed for the CLEO3
detector at Cornell's e+e- collider. This detector allows us to follow particles
in the flow at submicron resolution at a rate of 70,000 positions per second. We
report results on particle accelerations and show that the acceleration is a very
intermittend quantity and that variance scales according with the predictions of
Kolomogrov. Particle size effects are alos disussed.
For more details go
This work was done in collaboration with J. Alexander, A. Crawford, A. LaPorta,
and G. Voth with generous support from the National Science Foundation.
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