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Transition to unsteady flow and intensity of velocity fluctuations in a porous medium
Author(s) -
Kingston George,
Nunge Richard J.
Publication year - 1973
Publication title -
the canadian journal of chemical engineering
Language(s) - English
Resource type - Journals
SCImago Journal Rank - 0.404
H-Index - 67
eISSN - 1939-019X
pISSN - 0008-4034
DOI - 10.1002/cjce.5450510216
Subject(s) - reynolds number , intensity (physics) , mechanics , flow (mathematics) , physics , constant (computer programming) , spheres , materials science , optics , turbulence , computer science , astronomy , programming language
Direct measurements of local velocity and the intensity of velocity fluctuations in a pore of a number three rhombohedral array of spheres indicate a region of increasing intensity beginning at Reynolds number of about 80 and reaching a maximum intensity of approximately 0.6 at a Reynolds number of about 200. At higher Reynolds numbers the intensity falls to a constant value between 0.4 and 0.5.