Drift speed: A way of measuring diffusion and tortuosity of porous materials

Magnus Törnqvist, Tapio Hurme, Jarl B. Rosenholm

Research output: Contribution to journalArticleScientificpeer-review

10 Citations (Scopus)

Abstract

The drift speed for pine, birch and spruce was measured. Several effects could be distinguished by comparing the fluxes with steady state results and with the theoretical diffusion obtained with the model of Einstein. By comparing the fluxes from the three models, the length of diffusion was calculated. Drift speed measurement is shown to be a great asset when studying flow in complex porous materials.
Original languageEnglish
Pages (from-to)23-31
Number of pages9
JournalColloids and Surfaces A: Physicochemical and Engineering Aspects
Volume180
Issue number1-2
DOIs
Publication statusPublished - Jan 2001
MoE publication typeA1 Journal article-refereed

Keywords

  • Diffusion
  • Flux
  • Ion
  • Speed
  • Wood

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