The transverse permeability for creeping flow through unidirectional random arrays of fibers/cylinders has been studied numerically using the finite element method (FEM). A modified Carman-Kozeny (CK) relation is presented which takes into account the tortuosity (flow path) and the lubrication effect of the narrow channels. The proposed relation is valid in a wide range of porosities compared to the classical CK equation. The proposed general relationship for the permeability can be utilized for composite manufacturing and also for validation of advanced coarse models for particle-fluid interactions.
|Title of host publication||PARTICLES 2011|
|Editors||E Onate, D.R.J Owen|
|Place of Publication||Barcelona|
|Number of pages||10|
|Publication status||Published - 26 Oct 2011|
|Event||II International Conference on Particle-based Methods - Fundamentals and Applications, PARTICLES 2011 - Barcelona, Spain|
Duration: 26 Oct 2011 → 28 Oct 2011
Conference number: 2
|Conference||II International Conference on Particle-based Methods - Fundamentals and Applications, PARTICLES 2011|
|Period||26/10/11 → 28/10/11|
- Fibrous Materials
- Carman-Kozeny relation
Yazdchi, K., Srivastava, S., & Luding, S. (2011). On the validity of the Carman-Kozeny equation in random fibrous media. In E. Onate, & D. R. J. Owen (Eds.), PARTICLES 2011 (pp. 1-10). Barcelona: ECCOMAS.