A note on some solutions of micropolar fluid in a channel with permeable walls

Abstract

Purpose

The purpose of this paper is to investigate different branches of the solution of micropolar fluid in a channel with permeable walls. Moreover, the intention of the study is to examine the effect of different physical parameters on fluid flow.

Design/methodology/approach

The mathematical modeling is performed on the basis of law of conservation of mass, momentum and angular momentum. The governing partial differential equations were transformed into ordinary differential equations by applying suitable similarity transformation. Afterwards, the set of nonlinear ordinary differential equations was solved numerically by a shooting method.

Findings

The study reveals that various branches of the solution of the proposed problem exist only in the case of strong suction.

Originality/value

The investigation of new branches of the solution of non-Newtonian micropolar fluid is relatively difficult as far as the single solution is concern. This study explores the new branches of the solution of a micropolar fluid in a channel with suction/injection. Simultaneous effect of suction Reynolds number and vortex viscosity parameter on velocity and micro-rotation profile is examined for different branches of solution in order to make the analysis more interesting.

Citation

Raza, J., Rohni, A.M. and Omar, Z. (2018), "A note on some solutions of micropolar fluid in a channel with permeable walls", Multidiscipline Modeling in Materials and Structures, Vol. 14 No. 1, pp. 91-101. https://doi.org/10.1108/MMMS-06-2017-0053