Authors: | Boettcher, Konrad E. R. Fischer, Michael-David Neumann, Tim Ehrhard, Peter |
Title: | Experimental investigation of the pre–Darcy regime |
Language (ISO): | en |
Abstract: | The validity of Darcy’s law at very low Reynolds numbers is discussed controversially in literature, as some authors propose a pre–Darcy flow regime below some critical Reynolds number. The scope of this work is to investigate this problem experimentally. Therefore, a packing of glass spheres is perfused by different glycerin–water solutions. A linear behaviour between the flow velocity and the pressure drop through the packed spheres is found in the complete investigated range of Reynolds number Red′, based on the mean-pore diameter d′ and mean-pore velocity v′ with 10−9≤Red′≤10−1. This contradicts the results of different authors like Fand et al. (1987) or Kececioglu and Jiang (1994), postulating a pre–Darcy regime for Red′≤2.8⋅10−6 or Red′≤0.13, respectively. |
URI: | http://hdl.handle.net/2003/41825 http://dx.doi.org/10.17877/DE290R-23669 |
Issue Date: | 2022-02-02 |
Rights link: | https://creativecommons.org/licenses/by/4.0/ |
Appears in Collections: | Arbeitsgruppe Apparatedesign |
Files in This Item:
File | Description | Size | Format | |
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s00348-022-03387-9.pdf | DNB | 1.64 MB | Adobe PDF | View/Open |
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