Abstract
Wavy Taylor vortex flow was simulated by developing a stream function model of the velocity vector field in a radial-axial plane that mimics an experimentally obtained velocity field. The simulation neglects the azimuthal component of velocity but provides estimates of the mixing and axial transport properties of wavy vortex flow in the axial-radial plane at higher Taylor numbers ( Ta) and larger gap widths than previous models. Based on the estimated Lyapunov numbers, the particle paths appear to be chaotic for wavy vortex flow in the range 131 ≤ Ta ≤ 253. The axial particle transport increases with the Taylor number in this range, most likely due to increased axial transport of fluid between vortices. The mixing within vortices is also enhanced with increasing Taylor number as a result of increased stretching and folding within a vortex.
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