Experimental study of the Kolmogorov refined similarity variable
| Autor: | Iwao Hosokawa, C. W. Van Atta, S. T. Thoroddsen |
|---|---|
| Rok vydání: | 1994 |
| Předmět: |
Fluid Flow and Transfer Processes
Turbulence Mechanical Engineering Gaussian General Physics and Astronomy Probability density function Similitude Physics::Fluid Dynamics symbols.namesake Distribution (mathematics) Similarity (network science) Kolmogorov structure function Kolmogorov equations (Markov jump process) symbols Calculus Statistical physics Mathematics |
| Zdroj: | Fluid Dynamics Research. 13:329-333 |
| ISSN: | 1873-7005 0169-5983 |
| DOI: | 10.1016/0169-5983(94)90013-2 |
| Popis: | Recently Thoroddsen and Van Atta (1992, Phys. Fluids A4, 2592) showed that Kolmogorov's refined similarity hypothesis (1962, J. Fluid Mech. 13, 77; 82) is supported by experimental data from a wind-tunnel study of a cylinder wake, at Reλ of 550. We show here that the probability density of the Kolmogorov similarity variable approaches a Gaussian distribution. The data also suggest that it may obey an even more demanding conditional similarity, which leads to important conclusions regarding the scaling exponents. |
| Databáze: | OpenAIRE |
| Externí odkaz: |
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