A SIMPLISTIC ANALYTICAL MODEL OF PERMEABILITY FOR OPEN-CELL METALLIC FOAMS

Yang Xiaohu; Bai Jiaxi; Lu Tianjian

doi:10.6052/0459-1879-14-115

Volume 46 Issue 6

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Article Navigation > Chinese Journal of Theoretical and Applied Mechanics > 2014 > 46(6): 982-986

Yang Xiaohu, Bai Jiaxi, Lu Tianjian. A SIMPLISTIC ANALYTICAL MODEL OF PERMEABILITY FOR OPEN-CELL METALLIC FOAMS[J]. Chinese Journal of Theoretical and Applied Mechanics, 2014, 46(6): 982-986. doi: 10.6052/0459-1879-14-115

Citation:

Yang Xiaohu, Bai Jiaxi, Lu Tianjian. A SIMPLISTIC ANALYTICAL MODEL OF PERMEABILITY FOR OPEN-CELL METALLIC FOAMS[J]. Chinese Journal of Theoretical and Applied Mechanics, 2014, 46(6): 982-986. doi: 10.6052/0459-1879-14-115

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A SIMPLISTIC ANALYTICAL MODEL OF PERMEABILITY FOR OPEN-CELL METALLIC FOAMS

doi: 10.6052/0459-1879-14-115

1 School of Energy and Power Engineering, Xi'an Jiaotong University, Xi'an 710049, China
2 Multidisplinary Research Center for Lightweight Structures and Materials, Xi'an Jiaotong University, Xi'an 710049, China
3 State Key Laboratory for Strength and Vibration of Mechanical Structures, Xi'an Jiaotong University, Xi'an 710049, China

Funds: The project was supported by the National Basic Research Program of China (2011CB610305) and the National 111 Project of China (B06024).

Received Date: 2014-07-16
Rev Recd Date: 2014-09-15
Publish Date: 2014-11-18

Abstract

Abstract

Based on a generalized tortuosity model and a cubic unit cell topology, an analytical model is developed for predicting the permeability of open-cell metallic foams. The present model has a simple form and requires no fitting or empirical parameters. It is capable of analytically predicting the permeability of open-cell foams over a wide range of porosities (0.55～0.98) and pore densities (5～100 PPI), with good agreement with experimental data. Results demonstrate that the flow tortuosity determined by algorithm branching method enables faithfully capturing the behavior of fluid flow across open-cell metallic foams. Further, the modification made by open pore rate successfully extends the present permeability model from fully-open foams to semi-open ones.
- open-cell metallic foam,
- permeability,
- tortuosity,
- analytical model,
- algorithm branching

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References(21)

References

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