Modeling of Turbulent Flow and Heat Transfer in Graphitic Foams

J. Cepek; Anthony G. Straatman

doi:10.4028/www.scientific.net/DDF.297-301.739

Paper Titles

Hydrogen Diffusivity and Solubility in Internally Oxidized Pd_0.97Zr_0.03 and Pd_0.97Nb_0.03 Alloys
p.715

Hydrogen Diffusivity and Hydride Formation in Rich-Zirconium Alloys Used in Nuclear Reactors
p.722

Three-Dimensional Study of Heat and Mass Transfer in a Partially Porous Elongated Cavity
p.728

Effects of the Microstructure on the Hydrogen Diffusivity in Ni-Based Superalloy 718
p.733

Modeling of Turbulent Flow and Heat Transfer in Graphitic Foams
p.739

Hydrogen Absorption/Desorption in Nanostructured Fe- and Ti-Doped Mg₂Ni Alloys
p.745

Surface Microstructure Evolution during Phase Transformation on Mn, Al and Si Alloyed Ultra Low Carbon Steel
p.757

A Study of Photocatalyst of the TiO₂ Thin Film with Acid Dispersed CNT for Dye-Sensitized Solar Cell
p.764

Diffusion in Al-Ni and Al-NiCr Interfaces at Moderate Temperatures
p.771

HomeDefect and Diffusion ForumDefect and Diffusion Forum Vols. 297-301Modeling of Turbulent Flow and Heat Transfer in...

Modeling of Turbulent Flow and Heat Transfer in Graphitic Foams

Abstract:

We describe a study conducted to examine the influence of turbulence on the flow and heat transfer in graphitic foams. In this study, a Large Eddy Simulation (LES) model was used to characterize turbulence in the momentum and energy balances, and calculations were done to produce transient results of the velocity and temperature fields inside the spherical pores of the foam. The LES simulations enable excellent insight into the pore-level heat transfer mechanisms for the spherical void shape, and show that the heat transfer increases by a factor of 4.7 for an order of magnitude increase in the Reynolds number.

You might also be interested in these eBooks

View Preview

Info:

Periodical:

Defect and Diffusion Forum (Volumes 297-301)

Pages:

739-744

DOI:

https://doi.org/10.4028/www.scientific.net/DDF.297-301.739

Citation:

Cite this paper

Online since:

April 2010

Authors:

J. Cepek, Anthony G. Straatman

Keywords:

Graphitic Foam, Large Eddy Simulation (LES), Porous Medium, Turbulence

Export:

RIS, BibTeX

Price:

Permissions:

Request Permissions

References

[1] S.A.M. Karimian and A.G. Straatman: Int. J. Heat Fluid Fl. Vol. 29 (2008), p.292.

Google Scholar

[2] S.A.M. Karimian and A.G. Straatman: ASME J. Heat Transfer Vol. 131 (2009), Article 052602.

Google Scholar

[3] Q. Yu, B.E. Thompson and A.G. Straatman: ASME J. Heat Transfer Vol. 128 (2006), p.352.

Google Scholar

[4] J. Klett, R. Hardy, E. Romine, C. Walls, and T. Burchell: Carbon Vol. 38 (2000), p.953.

Google Scholar

[5] P. Sagaut, in: Large Eddy Simulation for Incompressible Flows, Springer, Berlin (2006).

Google Scholar

[6] S.A.M. Karimian and A.G. Straatman: Int. J. Numer. Meth. Fl. Vol. 52 (2006), p.591.

Google Scholar

[7] C.M. Rhie and W.L. Chow: AIAA J. Vol. 21 (1983), p.1525.

Google Scholar

[8] S.B. Beale: ASME J. Heat Transfer Vol. 129 (2007), p.601.

Google Scholar

[9] S.A.M. Karimian: Computational Modelling of the Flow and Heat Transfer in an Idealized Porous Metal, PhD, The University of Western Ontario, (2006).

Google Scholar

[10] K.R. Jolls and T.J. Hanratty: Chem. Eng. Sci. Vol. 21 (1966), p.1185.

Google Scholar

[11] A. Dybbs, and R.V. Edwards, in: Fundamentals of Transport Phenomena in Porous Media, edited by J. Bear and M.Y. Corapcioglu, Martinus Nijhoff Publishers, The Hague, Netherlands (1982).

Google Scholar

[12] A.G. Straatman, N.C. Gallego, B.E. Thompson, and H. Hangan: Int. J. Heat Mass Tran. Vol. 49 (2006), p. (1991).

Google Scholar

[13] L. Giani, G. Groppi, and E. Tronconi: Ind. Eng. Chem. Res. Vol. 44 (2005), p.9078.

Google Scholar