Published March 31, 2023 | Version 1.0
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Numerical investigation of unsteady flow and heat transfer of a free convective second-grade fluid passing through exponentially accelerated vertical porous plate

Creators

  • 1. Veer Surendra Sai University of Technology, Burla 768018, Odisha, India

Description

The constitutive equation considered here exhibits the heat transfer
and unsteady flow of a second-grade fluid past through a long
porous wall vertically. The discretized form of equations is obtained
by implementing the method of finite difference of Crank -Nicolson
type and solved numerically by resorting highly convergent method
called “damped Newton". Two different cases are taken into consideration
i.e the plate is accelerating differently at (n = 0.5) and
constant acceleration (n = 1) and a comparative study is performed
for the obtained results. Influence of various parameters gr, R, Pr and
α on the temperature and velocity field are studied through several
graphs. The significant finding of the study is that for large Pr values,
increases in the viscoelastic parameter α cause a rise in the velocity,
Still, a contradicting effect is observed for comparatively smaller Pr
values.

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