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| Pair
separation of particles in turbulence |
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| - An old problem…. starting with Richardson in 1926 |
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| - Tackled by him,
Batchelor, Obukhov, Kraichnan,… |
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| - Several predictions for
pair distributions |
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| - Essentially no reliable data for a long
time |
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| - Accurate data
obtained only a few years ago |
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| - Surprisingly
close to Kraichnan model prediction |
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