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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

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

doi: 10.6052/0459-1879-14-115
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
  • 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.

     

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