Effect of induced magnetic field on peristaltic flow of a micropolar fluid in an asymmetric channel

TL;DR

This paper investigates how an induced magnetic field influences peristaltic flow of micropolar fluids in an asymmetric channel, revealing magnetic control over flow velocity, trapping, and reflux with potential physiological applications.

Contribution

It provides exact analytical solutions for flow characteristics considering induced magnetic fields in micropolar fluids, a novel aspect in peristaltic flow analysis.

Findings

Velocity decreases with increasing magnetic field and coupling parameter.

External magnetic field can eliminate trapping of fluid.

Flow characteristics are significantly affected by magnetic and micropolar parameters.

Abstract

Of concern in this paper is an investigation of peristaltic transport of a physiological fluid in an asymmetric channel under long wave length and low-Reynolds number assumptions. The flow is assumed to be incompressible, viscous, electrically conducting micropolar fluid and the effect of induced magnetic field is taken into account. Exact analytical solutions obtained for the axial velocity, microrotation component, stream line pattern, magnetic force function, axial-induced magnetic field as well as the current density distribution across the channel. The flow phenomena for the pumping characteristics, trapping and reflux are also investigated. The results presented reveal that the velocity decreases with the increase of magnetic field as well as the coupling parameter. Moreover, the trapping fluid can be eliminated by the application of an external magnetic field. Thus, the study bears the promise of important applications in physiological systems.