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Title: Effect of an inserted porous layer located at a wall of a parallel plate channel on forced convection heat transfer
Authors: Uçar, Eren
Mobedi, Moghtada
Pop, Ioan
Keywords: Channel flow
Fully developed
Partially filled porous media
Porous medium
Publisher: Springer Verlag
Source: Uçar, E., Mobedi, M., and Pop, I. (2013). Effect of an inserted porous layer located at a wall of a parallel plate channel on forced convection heat transfer. Transport in Porous Media, 98(1), 35-57. doi:10.1007/s11242-013-0131-4
Abstract: A theoretical study is performed on heat and fluid flow in partially porous medium filled parallel plate channel. A uniform symmetrical heat flux is imposed onto the boundaries of the channel partially filled with porous medium. The dimensional forms of the governing equations are solved numerically for different permeability and effective thermal conductivity ratios. Then, the governing equations are made dimensionless and solved analytically. The results of two approaches are compared and an excellent agreement is observed, indicating correctness of the both solutions. An overall Nusselt number is defined based on overall thermal conductivity and difference between the average temperature of walls and mean temperature to compare heat transfer in different channels with different porous layer thickness, Darcy number, and thermal conductivity ratio. Moreover, individual Nusselt numbers for upper and lower walls are also defined and obtained. The obtained results show that the maximum overall Nusselt number is achieved for thermal conductivity ratio of 1. At specific values of Darcy number and thermal conductivity ratio, individual Nusselt numbers approach to infinity since the value of wall temperatures approaches to mean temperature.
ISSN: 1573-1634
Appears in Collections:Mechanical Engineering / Makina Mühendisliği
Scopus İndeksli Yayınlar Koleksiyonu / Scopus Indexed Publications Collection
WoS İndeksli Yayınlar Koleksiyonu / WoS Indexed Publications Collection

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