The topology of homogeneous isotropic turbulence with passive scalar transport
AbstractData 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.
Proceedings Computational Techniques and Applications Conference