Unsteady flow and heat transfer in a composite porous annulus with time-dependent injection
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Date
2012
Journal Title
Journal ISSN
Volume Title
Publisher
VERLAG Z NATURFORSCH
Abstract
In the present study, we deal with the momentum and heat transfer analysis in a horizontal annulus
of a composite porous medium. The Darcy–Brinkman model is used to develop the governing equations
for the flow and heat transfer phenomenon. The annulus injects the time dependent oscillatory
velocity normal to its surface. Both the regions of the flow have their own viscosities, and the heat
transfer analysis is carried out by retaining viscous dissipation. The governing equations for flow and
heat transfer are solved analytically using a perturbation series for solutions in both regions of the annulus.
A brief parametric analysis is performed for the velocity and the temperature profiles through
graphs.
Description
Keywords
Unsteady Flow, Heat Transfer, Porous Medium; Suction/Injection, Mathematics
Citation
Zeitschrift Fur Naturforschung Section A-A Journal of Physical Sciences, 67a, 657 – 664