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arXiv · 2503.19623

Taylor dispersion in variable-density, variable-viscosity pulsatile flows

Prabakaran Rajamanickam·Adam D. Weiss
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Abstract

The phenomenon of Taylor or shear-induced dispersion of a non-passive scalar field in a pulsatile pipe flow is investigated, accounting for the scalar field's influence on fluid density and transport coefficients. By employing multiple scale analysis, an effective one-dimensional, unsteady mixing problem for the scalar field is obtained, which includes the diffusion coefficient for shear-induced dispersion. The resulting governing equations are applicable to a range of scalar transport problems in pulsatile pipe flows.

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Prabakaran Rajamanickam, Adam D. Weiss. 2025-03-25. Taylor dispersion in variable-density, variable-viscosity pulsatile flows. https://doi.org/10.13023/psmij.2026.07-01-01

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