The topology of homogeneous isotropic turbulence with passive scalar transport

Authors

  • P. L. O'Neill
  • J. Soria

DOI:

https://doi.org/10.21914/anziamj.v46i0.1013

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.

Published

2005-11-05

Issue

Section

Proceedings Computational Techniques and Applications Conference