Abstract
Data obtained from direct numerical simulations of isotropic homogeneous turbulence and the diffusion of a scalar with an applied mean gradient is analysed using the topological techniques developed by Chong, Perry and Cantwell [ Physics of Fluids A , 2 :765-777, 1990]. Simulations were run at two different Taylor--Reynolds numbers and two different Schmidt numbers. Comparing the numerical results obtained, relationships between the scalar characteristics and the topological features of the flow are identified.
| Original language | English |
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| Pages (from-to) | C1170-C1187 |
| Journal | THE ANZIAM JOURNAL |
| Volume | 46 |
| Issue number | 5 |
| Publication status | Published - 2004 |