ORIGINAL PAPER
Mhd Of Williamson Micropolar - Nanofluid Flow Over A Nonlinear Stretching Sheet: A Numerical Investigation.
 
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University of Medea, Mechanical engineering, Biomaterials and transport phenomena, Algeria
 
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Faculté of technology, Mechanical engineering, Biomaterials and transport phenomena, Algeria
 
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University of Medea Faculty of technology, Process engineering,, Biomaterials and transport phenomena Laboratory, Algeria
 
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Mechanical engineering, Biomaterials and transport phenomena, Algeria
 
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University of Medea Faculty of technology, Biomaterials and transport phenomena Laboratory, Algeria
 
 
Submission date: 2025-02-07
 
 
Final revision date: 2025-07-12
 
 
Acceptance date: 2026-02-24
 
 
Online publication date: 2026-06-01
 
 
Publication date: 2026-06-01
 
 
Corresponding author
Bouaziz Mohamed Najib   

Mechanical engineering, Biomaterials and transport phenomena, Pole univesitaire, 26000, Medea, Algeria
 
 
International Journal of Applied Mechanics and Engineering 2026;31(2):50-71
 
KEYWORDS
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ABSTRACT
This computational study examines a Williamson-micropolar nanofluid flow over a nonlinear stretching sheet subjected to a magnetic field. The Williamson fluid model, known for its ability to describe non-Newtonian shear-thinning behavior, is commonly applied in industrial polymers sheet extrusion. To highlight the influence of the involved parameters on the profiles an adequate mathematical model is formulated. Similarity transformations are used to convert the governing partial differential equations into a system of coupled nonlinear ordinary differential equations. The bvp4c solver of Matlab software is used to solve equations using the Lobatto III finite difference discretisation method with prior verification of the code developed. The impact of various physical parameters are explained and presented through graphs, tables and summarized in conclusion.The main result is that the relevant Williamson micropolar-nanofluid provides substantial improvement in thermal performance and reduced skin-friction can be gained. The values [M, K,
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