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Spectra and Statistics of Velocity and Temperature Fluctuations in Turbulent Convection

✍ Scribed by Ashkenazi, Shay; Steinberg, Victor


Book ID
118171356
Publisher
The American Physical Society
Year
1999
Tongue
English
Weight
71 KB
Volume
83
Category
Article
ISSN
0031-9007

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Conditional statistics of velocity fluct
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Using experimental data recorded in a low temperature helium jet, we have studied the statistics of velocity increments: Vr (x) = v(x +r) -v(x) conditioned on a "rate of energy transfer" anzatz, er : P(vr ]er). For a fixed value ofer, the histograms of Vr are found Gaussian at all scale, i.e. there