| Autor: |
Yeung, P. K., Yeung, P.K., Sykes, Michelle C., Vedula, Prakash |
| Předmět: |
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| Zdroj: |
Physics of Fluids; Jun2000, Vol. 12 Issue 6, 1 Chart, 5 Graphs |
| Abstrakt: |
Highly resolved direct numerical simulations are used to study the differential diffusion of passive scalars of above-unity Schmidt number in low Reynolds number turbulence. Both the coherency and the spectrum of the two-scalar difference obey Batchelor scaling based on the parameters of the less diffusive scalar. A reverse spectral transfer effect due to velocity modes in the far dissipation range is identified, which may be important at very high Schmidt numbers. © 2000 American Institute of Physics. [ABSTRACT FROM AUTHOR] |
| Databáze: |
Complementary Index |
| Externí odkaz: |
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