MHD stagnation-point flow over a stretching/shrinking sheet in a micropolar fluid with a slip boundary

Siti Khuzaimah Soid, Anuar Mohd Ishak, Ioan Pop

Research output: Contribution to journalArticle

9 Citations (Scopus)

Abstract

The problem of stagnation point flow over a stretching/shrinking sheet immersed in a micropolar fluid is analyzed numerically. The governing partial differential equations are transformed into a system of ordinary (similarity) differential equation and are then solved numerically using the boundary value problem solver (bvp4c) in Matlab software. The effects of various parameters on the velocity and the angular velocity as well as the skin friction coefficient and the couple stress are shown in tables and graphs. The noticeable results are found that the micropolar and the slip parameters decrease the skin friction coefficient and the couple stress in the existence of magnetic field. Dual solutions appear for certain range of the shrinking strength. A stability analysis is performed to determine which one of the solutions is stable. Practical applications include polymer extrusion, where one deals with stretching of plastic sheets and in metallurgy that involves the cooling of continuous strips.

Original languageEnglish
Pages (from-to)2907-2916
Number of pages10
JournalSains Malaysiana
Volume47
Issue number11
DOIs
Publication statusPublished - 1 Nov 2018

Fingerprint

Skin friction
Magnetohydrodynamics
Stretching
Plastic sheets
Fluids
Angular velocity
Metallurgy
Ordinary differential equations
Boundary value problems
Partial differential equations
Extrusion
Magnetic fields
Cooling
Polymers

Keywords

  • Micropolar fluid
  • Stability analysis
  • Stagnation point flow
  • Stretching/shrinking

ASJC Scopus subject areas

  • General

Cite this

MHD stagnation-point flow over a stretching/shrinking sheet in a micropolar fluid with a slip boundary. / Soid, Siti Khuzaimah; Mohd Ishak, Anuar; Pop, Ioan.

In: Sains Malaysiana, Vol. 47, No. 11, 01.11.2018, p. 2907-2916.

Research output: Contribution to journalArticle

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