Measuring nonextensitivity parameters in a turbulent Couette-Taylor flow
Mar, 20014 pages
Published in:
- Phys.Rev.E 63 (2001) 035303
e-Print:
- cond-mat/0010476 [cond-mat.stat-mech]
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Abstract: (APS)
We investigate probability density functions of velocity differences at different distances r measured in a Couette-Taylor flow for a range of Reynolds numbers Re. There is good agreement with the predictions of a theoretical model based on nonextensive statistical mechanics (where the entropies are nonadditive for independent subsystems). We extract the scale-dependent nonextensitivity parameter q(r,Re) from the laboratory data.Note:
- 8 pages, 5 figures
- 47.27.-i
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