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HomeDefect and Diffusion ForumDefect and Diffusion Forum Vol. 429CFD Analysis of Perforated Plates and Open-Cell...

CFD Analysis of Perforated Plates and Open-Cell Materials Aerodynamics

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Abstract:

In this paper, a numerical study of fluid flow through perforated panels with square holes and open-cell material with cubic cells is presented. Structures with a wide variety of porosities (0.15<φ<0.94) and Reynolds numbers (0.01<Re<6000) are studied. Among the various outcomes obtained, the results indicate that pressure gradient vs Reynolds number exhibits three different forms of variation, including linear (Re<1), nonlinear (1≤Re<4000), and one where the pressure gradient is virtually constant with the Reynolds number (Re≥4000). The results were provided in terms of loss factor, but also of intrinsic permeability and the Forchheimer coefficient. Relationships that connect porosity to the loss factor, intrinsic permeability, and Forchheimer coefficient are also presented. These findings may prove useful in better understanding the flow behaviors in perforated panels and cell metal foams, which have a wide range of applications.

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Advances in Mass and Thermal Transport in Engineering Materials IV

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Periodical:

Defect and Diffusion Forum (Volume 429)

Pages:

81-90

DOI:

https://doi.org/10.4028/p-O0aFG5

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Online since:

December 2023

Authors:

Antonio Ferreira Miguel*

Keywords:

Aerodynamics, Dimensionless Loss Factor, Fluid Flow, Forchheimer Coefficient, Open-Cell Materials, Perforated Places, Permeability

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© 2023 Trans Tech Publications Ltd. All Rights Reserved

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* - Corresponding Author

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