Interfacial heat transfer coefficients in a porous medium modeled as a staggered array of square rods are numerically determined. High and low Reynolds - turbulence models are used in conjunction of a two-energy equation model, which includes distinct transport equations for the fluid and the solid phases. The literature has documented proposals for macroscopic energy equation modeling for porous media considering the local thermal equilibrium hypothesis and laminar flow. In addition, two-energy equation models have been proposed for conduction and laminar convection in packed beds. With the aim of contributing to new developments, this work treats turbulent heat transport modeling in porous media under the local thermal nonequilibrium assumption. Macroscopic time-average equations for continuity, momentum, and energy are presented based on the recently established double decomposition concept (spatial deviations and temporal fluctuations of flow properties). The numerical technique employed for discretizing the governing equations is the control volume method. Turbulent flow results for the macroscopic heat transfer coefficient, between the fluid and solid phase in a periodic cell, are presented.
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Research Papers
A Correlation for Interfacial Heat Transfer Coefficient for Turbulent Flow Over an Array of Square Rods
Marcelo B. Saito,
Marcelo B. Saito
Departamento de Energia - IEME,
Instituto Tecnológico de Aeronáutica - ITA
, 12228-900 - São José dos Campos - SP, Brazil
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Marcelo J. S. de Lemos
Marcelo J. S. de Lemos
Mem. ASME
Departamento de Energia - IEME,
e-mail: delemos@ita.br
Instituto Tecnológico de Aeronáutica - ITA
, 12228-900 - São José dos Campos - SP, Brazil
Search for other works by this author on:
Marcelo B. Saito
Departamento de Energia - IEME,
Instituto Tecnológico de Aeronáutica - ITA
, 12228-900 - São José dos Campos - SP, Brazil
Marcelo J. S. de Lemos
Mem. ASME
Departamento de Energia - IEME,
Instituto Tecnológico de Aeronáutica - ITA
, 12228-900 - São José dos Campos - SP, Brazile-mail: delemos@ita.br
J. Heat Transfer. May 2006, 128(5): 444-452 (9 pages)
Published Online: October 28, 2005
Article history
Received:
April 15, 2005
Revised:
October 28, 2005
Citation
Saito, M. B., and de Lemos, M. J. S. (October 28, 2005). "A Correlation for Interfacial Heat Transfer Coefficient for Turbulent Flow Over an Array of Square Rods." ASME. J. Heat Transfer. May 2006; 128(5): 444–452. https://doi.org/10.1115/1.2175150
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