Mechanics of Fluid Flow through a Porous Medium

  • Donald A. Nield
  • Adrian Bejan


By a porous medium we mean a material consisting of a solid matrix with an interconnected void. We suppose that the solid matrix is either rigid (the usual situation) or it undergoes small deformation. The interconnectedness of the void (the pores) allows the flow of one or more fluids through the material. In the simplest situation (“single-phase flow”) the void is saturated by a single fluid. In “two-phase flow” a liquid and a gas share the void space.


Porous Medium Representative Elementary Volume Clear Fluid Darcy Number Unidirectional Flow 
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Copyright information

© Springer Science+Business Media New York 1992

Authors and Affiliations

  • Donald A. Nield
    • 1
  • Adrian Bejan
    • 2
  1. 1.Engineering SciencesUniversity of AucklandAucklandNew Zealand
  2. 2.Mechanical EngineeringDuke UniversityDurhamUSA

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