Taylor dispersion in variable-density, variable-viscosity pulsatile flows
Fluid Dynamics
2026-03-13 v4
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.
Cite
@article{arxiv.2503.19623,
title = {Taylor dispersion in variable-density, variable-viscosity pulsatile flows},
author = {Prabakaran Rajamanickam and Adam D. Weiss},
journal= {arXiv preprint arXiv:2503.19623},
year = {2026}
}