Abstract
Numerical analysis is performed to study the dynamical behavior of vortices generated in a sinusoidal wavy channel for pulsatile flow. This system is employed in order to enhance heat and mass transfer under laminar flow conditions. A pair of counter-rotating vortices periodically moves between the upper and lower walls with one wavelength. The vortex strength has a maximum value at a certain Womersley number, which increases with the net flow Reynolds number. A particle advection procedure also indicates that the vortex dynamics lead to efficient fluid mixing with increasing Womersley number.
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