Adsorption and capillary processes in variably saturated porous media-pore scale hydrostatic and hydrodynamic considerations

Dani Or, Markus Tuller

Research output: Chapter in Book/Report/Conference proceedingChapter

Abstract

This chapter provides a review of progress in pore- and sample-scale liquid retention and liquid-vapor interfacial area modeling. It discusses aspects of the unitary approach for combining adsorptive and capillary contributions, and presents the new pore scale model. The upscaling scheme for representing sample scale retention properties is presented, followed by illustrative examples with measured characteristic data and a discussion of critical soil parameters. The chapter highlights the role of liquid-vapor interfacial area by comparisons of model predictions with limited measurements. It also provides information on hydrodynamic considerations of unsaturated flow in films and comers leading to prediction of hydraulic conductivity of rough rock surfaces and unsaturated porous media. The detailed picture of liquid vapor interfaces under hydrostatic conditions provides a basis for introducing hydrodynamic considerations.

Original languageEnglish (US)
Title of host publicationPhysical and Chemical Processes of Water and Solute Transport / Retention in Soils
PublisherWiley
Pages1-50
Number of pages50
ISBN (Electronic)9780891189510
ISBN (Print)9780891188353
DOIs
StatePublished - Oct 26 2015
Externally publishedYes

Keywords

  • Adsorptive process
  • Capillary process
  • Hydrodynamic considerations
  • Hydrostatic conditions
  • Liquid-vapor interfacial area
  • Pore scale model
  • Saturated porous media

ASJC Scopus subject areas

  • Engineering(all)
  • Agricultural and Biological Sciences(all)

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