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Open Access Green as soon as Postprint is submitted to ZB.
Das Verdünnungsverfahren zur Bestimmung der durchlässigkeiten Poröser Medien grosser Körnung.
Catena 2, 153-160 (1975)
The point-dilution method can be used for the determination of some hydraulic parameters of porous media with large granulation. According to the point-dilution method the permeability of the porous medium is indirectly determined in a special measuring arrangement (i. a. a complete model well is set up with the porous medium to be examined as so-called concentric three-layer arrangement) by means of the determination of the horizontal distortion of the flow field. In particular the permeabilities of coarse porous media (permeabilities k > 10 cm/sec.), indirectly the smallest differences in pressure (Δ h < 0.1 mm) and the upper validity limit of Darcy's law of the examined porous medium can be determined with the method set forth. The new method is in particular suited for the exact determination of filter gravel with a granulation of more than 5 mm, since, contrary to the customary methods, it is always worked in the laminar flow region.
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Publication type
Article: Journal article
Document type
Scientific Article
ISSN (print) / ISBN
0341-8162
e-ISSN
1872-6887
Journal
CATENA
Quellenangaben
Volume: 2,
Issue: C,
Pages: 153-160
Publisher
Elsevier
Reviewing status
Peer reviewed
Institute(s)
Institut für Radiohydrometrie