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Effect of Axial Conduction in the Thermally Developing Region of the Channel Partially Filled with a Porous Medium: Constant Wall Heat Flux


Volume: 1 Issue: 1
Year of Publication: 2019
Authors: J. Sharath Kumar Reddy, D. Bhargavi



Abstract

The numerical investigation on heat transfer in the thermal entrance region of channel partially filled with a porous medium with the effect of axial conduction subjected to the boundary condition uniform heat flux have been studied. Porous insert attached adjacent to the both walls of the channel. The flow in the fluid and porous region are governed by Poiseuille flow and Darcy-Brinkman model. The flow is assumed to be unidirectional. The effect of the various parameters such as Darcy number, Peclet number and porous fraction on the heat transfer coefficient has been studied. The local Nusselt number depends on the porous fraction. The effect of the axial conduction is high when Peclet number is small in the entrance region of the channel.

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Keywords

Axial conduction; Porous medium; Thermal entrance region.




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