Comment on "Group method analysis of magneto-elastico-viscous flow along a semi-infinite flat plate with heat transfer", by Helal and Abd-el-Malek

TL;DR

This paper critically reviews a previous study on magneto-elastico-viscous flow along a flat plate, highlighting fundamental errors in the original group theory analysis and numerical solutions.

Contribution

It provides a detailed critique identifying fundamental errors in the original boundary layer flow analysis and numerical methods used by Helal and Abd-el-Malek.

Findings

Identifies fundamental errors in the original analysis.

Highlights inaccuracies in the numerical solutions.

Questions the validity of the original results.

Abstract

Comment on Group method analysis of magneto-elastico-viscous flow along a semi-infinite flat plate with heat transfer,Helal and Abd-el-Malek, Journal of Computational and Applied Mathematics 173 (2005) 199-210. In the above paper the authors treat the boundary layer flow of a elasto- viscous liquid along an infinite plate in the presence of a transverse magnetic field. The plate temperature is higher than the ambient fluid temperature. The boundary layer equations are transformed into ordinary ones using the group theory and subsequently are solved numerically. Velocity, temperature, shear stress and heat transfer profiles are presented for values of magnetic parameter M=0, 0.5 and 1. This is an interesting work but there are some fundamental errors which are presented below.