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Turbulent helium II flow through different narrow channels

Turbulent helium II flow through different narrow channels Turbulent helium II flow is investigated in an annular gap of about 10 µm width and in superfilters with a pore size ≤0.1 µm. Of primary interest is the flow behavior at high mass flow rates. In the cases of both an annular gap and superfilters, deviations from the low-flow-rate behavior are found, which can be attributed to different reasons. Both systems with their separately determined characteristics are then combined in a parallel arrangement in order to study the flow in a channel system with nonuniform dimensions, as is realized, e.g., in a porous plug. The parallel system permits checks of different hypotheses on the flow behavior. The results show that certain simplistic ideas about the internal geometry of a porous plug are inadequate for the hydrodynamic treatment. http://www.deepdyve.com/assets/images/DeepDyve-Logo-lg.png Journal of Low Temperature Physics Springer Journals

Turbulent helium II flow through different narrow channels

Journal of Low Temperature Physics , Volume 68 (4) – Nov 6, 2004

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References (21)

Publisher
Springer Journals
Copyright
Copyright
Subject
Physics; Condensed Matter Physics; Characterization and Evaluation of Materials; Magnetism, Magnetic Materials
ISSN
0022-2291
eISSN
1573-7357
DOI
10.1007/BF00683898
Publisher site
See Article on Publisher Site

Abstract

Turbulent helium II flow is investigated in an annular gap of about 10 µm width and in superfilters with a pore size ≤0.1 µm. Of primary interest is the flow behavior at high mass flow rates. In the cases of both an annular gap and superfilters, deviations from the low-flow-rate behavior are found, which can be attributed to different reasons. Both systems with their separately determined characteristics are then combined in a parallel arrangement in order to study the flow in a channel system with nonuniform dimensions, as is realized, e.g., in a porous plug. The parallel system permits checks of different hypotheses on the flow behavior. The results show that certain simplistic ideas about the internal geometry of a porous plug are inadequate for the hydrodynamic treatment.

Journal

Journal of Low Temperature PhysicsSpringer Journals

Published: Nov 6, 2004

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