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|Title:||Boundary conditions at the interface between fluid layer and fibrous medium|
Fibrous porous medium
|Source:||Bai, H.X., Yu, P., Winoto, S.H., Low, H.T. (2009-07-10). Boundary conditions at the interface between fluid layer and fibrous medium. International Journal for Numerical Methods in Fluids 60 (7) : 809-825. ScholarBank@NUS Repository. https://doi.org/10.1002/fld.1921|
|Abstract:||The flow through a channel partially filled with fibrous porous medium was analyzed to investigate the interfacial boundary conditions. The fibrous medium was modeled as a periodic array of circular cylinders, in a hexagonal arrangement, using the boundary element method. The area and volume average methods were applied to relate the pore scale to the representative elementary volume scale. The permeability of the modeled fibrous medium was calculated from the Darcy's law with the volume-averaged Darcy velocity. The slip coefficient, interfacial velocity, effective viscosity and shear jump coefficients at the interface were obtained with the averaged velocities at various permeabilities or Darcy numbers. Copyright © 2008 John Wiley & Sons, Ltd.|
|Source Title:||International Journal for Numerical Methods in Fluids|
|Appears in Collections:||Staff Publications|
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