ANZIAM J. 46(E) pp.C1170--C1187, 2005.
The topology of homogeneous isotropic turbulence with passive scalar transport
P. L. O'Neill | J. Soria |
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.
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Authors
- P. L. O'Neill
- Formerly of the Laboratory for Turbulence Research in Aerospace & Combustion (LTRAC), Monash University, Melbourne Australia; now at School of Mechanical Engineering, The University of Western Australia, Crawley, Western Australia 6009, Australia mailto:poneill@mech.uwa.edu.au
- J. Soria
- LTRAC, Monash University, Melbourne Australia
Published November 5, 2005. ISSN 1446-8735
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